Home / 156,089.31-215,403.25-84,469.35

Finding the Fourth Proportional to 156,089.31, 215,403.25 and 84,469.35

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Solution

The fourth proportional to 156,089.31, 215,403.25 and 84,469.35 is: 116,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,089.31 : 215,403.25 = 84,469.35 : x
  2. Step 2: Convert to fraction form
    156,089.31/215,403.25 = 84,469.35/x
  3. Step 3: Cross multiply
    156,089.31x = 215,403.25 × 84,469.35
  4. Step 4: Simplify right side
    156,089.31x = 18,194,972,058.71
  5. Step 5: Solve for x
    x = 18,194,972,058.71/156,089.31
  6. Step 6: Final answer
    x = 116,567.70

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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.