Home / 134,850.57-202,213.28-78,706.91

Finding the Fourth Proportional to 134,850.57, 202,213.28 and 78,706.91

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Solution

The fourth proportional to 134,850.57, 202,213.28 and 78,706.91 is: 118,023.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,850.57 : 202,213.28 = 78,706.91 : x
  2. Step 2: Convert to fraction form
    134,850.57/202,213.28 = 78,706.91/x
  3. Step 3: Cross multiply
    134,850.57x = 202,213.28 × 78,706.91
  4. Step 4: Simplify right side
    134,850.57x = 15,915,581,025.16
  5. Step 5: Solve for x
    x = 15,915,581,025.16/134,850.57
  6. Step 6: Final answer
    x = 118,023.83

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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.