Home / 156,463.20-215,920.08-84,842.73

Finding the Fourth Proportional to 156,463.20, 215,920.08 and 84,842.73

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Solution

The fourth proportional to 156,463.20, 215,920.08 and 84,842.73 is: 117,083.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,463.20 : 215,920.08 = 84,842.73 : x
  2. Step 2: Convert to fraction form
    156,463.20/215,920.08 = 84,842.73/x
  3. Step 3: Cross multiply
    156,463.20x = 215,920.08 × 84,842.73
  4. Step 4: Simplify right side
    156,463.20x = 18,319,249,049.02
  5. Step 5: Solve for x
    x = 18,319,249,049.02/156,463.20
  6. Step 6: Final answer
    x = 117,083.44

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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.