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Finding the Fourth Proportional to 156,366.48, 215,779.95 and 84,744.97

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Solution

The fourth proportional to 156,366.48, 215,779.95 and 84,744.97 is: 116,944.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,366.48 : 215,779.95 = 84,744.97 : x
  2. Step 2: Convert to fraction form
    156,366.48/215,779.95 = 84,744.97/x
  3. Step 3: Cross multiply
    156,366.48x = 215,779.95 × 84,744.97
  4. Step 4: Simplify right side
    156,366.48x = 18,286,265,389.35
  5. Step 5: Solve for x
    x = 18,286,265,389.35/156,366.48
  6. Step 6: Final answer
    x = 116,944.92

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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.