Home / 156,312.29-215,710.66-84,694.25

Finding the Fourth Proportional to 156,312.29, 215,710.66 and 84,694.25

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Solution

The fourth proportional to 156,312.29, 215,710.66 and 84,694.25 is: 116,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,312.29 : 215,710.66 = 84,694.25 : x
  2. Step 2: Convert to fraction form
    156,312.29/215,710.66 = 84,694.25/x
  3. Step 3: Cross multiply
    156,312.29x = 215,710.66 × 84,694.25
  4. Step 4: Simplify right side
    156,312.29x = 18,269,452,565.71
  5. Step 5: Solve for x
    x = 18,269,452,565.71/156,312.29
  6. Step 6: Final answer
    x = 116,877.90

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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.