Home / 156,001.24-215,280.90-84,381.04

Finding the Fourth Proportional to 156,001.24, 215,280.90 and 84,381.04

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Solution

The fourth proportional to 156,001.24, 215,280.90 and 84,381.04 is: 116,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,001.24 : 215,280.90 = 84,381.04 : x
  2. Step 2: Convert to fraction form
    156,001.24/215,280.90 = 84,381.04/x
  3. Step 3: Cross multiply
    156,001.24x = 215,280.90 × 84,381.04
  4. Step 4: Simplify right side
    156,001.24x = 18,165,626,234.14
  5. Step 5: Solve for x
    x = 18,165,626,234.14/156,001.24
  6. Step 6: Final answer
    x = 116,445.40

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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.