Home / 156,089.18-215,403.61-84,469.18

Finding the Fourth Proportional to 156,089.18, 215,403.61 and 84,469.18

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Solution

The fourth proportional to 156,089.18, 215,403.61 and 84,469.18 is: 116,567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,089.18 : 215,403.61 = 84,469.18 : x
  2. Step 2: Convert to fraction form
    156,089.18/215,403.61 = 84,469.18/x
  3. Step 3: Cross multiply
    156,089.18x = 215,403.61 × 84,469.18
  4. Step 4: Simplify right side
    156,089.18x = 18,194,966,305.74
  5. Step 5: Solve for x
    x = 18,194,966,305.74/156,089.18
  6. Step 6: Final answer
    x = 116,567.76

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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.