Home / 156,423.08-215,807.28-102,737.18

Finding the Fourth Proportional to 156,423.08, 215,807.28 and 102,737.18

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Solution

The fourth proportional to 156,423.08, 215,807.28 and 102,737.18 is: 141,740.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,423.08 : 215,807.28 = 102,737.18 : x
  2. Step 2: Convert to fraction form
    156,423.08/215,807.28 = 102,737.18/x
  3. Step 3: Cross multiply
    156,423.08x = 215,807.28 × 102,737.18
  4. Step 4: Simplify right side
    156,423.08x = 22,171,431,370.67
  5. Step 5: Solve for x
    x = 22,171,431,370.67/156,423.08
  6. Step 6: Final answer
    x = 141,740.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.