Home / 120,425.92-180,755.52-58,140.16

Finding the Fourth Proportional to 120,425.92, 180,755.52 and 58,140.16

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Solution

The fourth proportional to 120,425.92, 180,755.52 and 58,140.16 is: 87,266.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,425.92 : 180,755.52 = 58,140.16 : x
  2. Step 2: Convert to fraction form
    120,425.92/180,755.52 = 58,140.16/x
  3. Step 3: Cross multiply
    120,425.92x = 180,755.52 × 58,140.16
  4. Step 4: Simplify right side
    120,425.92x = 10,509,154,853.68
  5. Step 5: Solve for x
    x = 10,509,154,853.68/120,425.92
  6. Step 6: Final answer
    x = 87,266.55

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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.