Home / 120,079.50-180,062.67-70,173.96

Finding the Fourth Proportional to 120,079.50, 180,062.67 and 70,173.96

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Solution

The fourth proportional to 120,079.50, 180,062.67 and 70,173.96 is: 105,227.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,079.50 : 180,062.67 = 70,173.96 : x
  2. Step 2: Convert to fraction form
    120,079.50/180,062.67 = 70,173.96/x
  3. Step 3: Cross multiply
    120,079.50x = 180,062.67 × 70,173.96
  4. Step 4: Simplify right side
    120,079.50x = 12,635,710,602.07
  5. Step 5: Solve for x
    x = 12,635,710,602.07/120,079.50
  6. Step 6: Final answer
    x = 105,227.87

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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.