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Finding the Fourth Proportional to 156,445.01, 215,893.91 and 84,824.91

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Solution

The fourth proportional to 156,445.01, 215,893.91 and 84,824.91 is: 117,058.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,445.01 : 215,893.91 = 84,824.91 : x
  2. Step 2: Convert to fraction form
    156,445.01/215,893.91 = 84,824.91/x
  3. Step 3: Cross multiply
    156,445.01x = 215,893.91 × 84,824.91
  4. Step 4: Simplify right side
    156,445.01x = 18,313,181,061.17
  5. Step 5: Solve for x
    x = 18,313,181,061.17/156,445.01
  6. Step 6: Final answer
    x = 117,058.27

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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.