Home / 119,897.40-179,846.10-40,999.80

Finding the Fourth Proportional to 119,897.40, 179,846.10 and 40,999.80

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Solution

The fourth proportional to 119,897.40, 179,846.10 and 40,999.80 is: 61,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,897.40 : 179,846.10 = 40,999.80 : x
  2. Step 2: Convert to fraction form
    119,897.40/179,846.10 = 40,999.80/x
  3. Step 3: Cross multiply
    119,897.40x = 179,846.10 × 40,999.80
  4. Step 4: Simplify right side
    119,897.40x = 7,373,654,130.78
  5. Step 5: Solve for x
    x = 7,373,654,130.78/119,897.40
  6. Step 6: Final answer
    x = 61,499.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.