Home / 123,939.60-185,909.40-40,822.80

Finding the Fourth Proportional to 123,939.60, 185,909.40 and 40,822.80

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Solution

The fourth proportional to 123,939.60, 185,909.40 and 40,822.80 is: 61,234.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,939.60 : 185,909.40 = 40,822.80 : x
  2. Step 2: Convert to fraction form
    123,939.60/185,909.40 = 40,822.80/x
  3. Step 3: Cross multiply
    123,939.60x = 185,909.40 × 40,822.80
  4. Step 4: Simplify right side
    123,939.60x = 7,589,342,254.32
  5. Step 5: Solve for x
    x = 7,589,342,254.32/123,939.60
  6. Step 6: Final answer
    x = 61,234.20

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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.