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Finding the Fourth Proportional to 156,065.92, 215,370.42 and 84,445.62

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Solution

The fourth proportional to 156,065.92, 215,370.42 and 84,445.62 is: 116,534.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,065.92 : 215,370.42 = 84,445.62 : x
  2. Step 2: Convert to fraction form
    156,065.92/215,370.42 = 84,445.62/x
  3. Step 3: Cross multiply
    156,065.92x = 215,370.42 × 84,445.62
  4. Step 4: Simplify right side
    156,065.92x = 18,187,088,646.56
  5. Step 5: Solve for x
    x = 18,187,088,646.56/156,065.92
  6. Step 6: Final answer
    x = 116,534.66

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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.