Home / 156,046.40-215,344.06-84,426.38

Finding the Fourth Proportional to 156,046.40, 215,344.06 and 84,426.38

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Solution

The fourth proportional to 156,046.40, 215,344.06 and 84,426.38 is: 116,508.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,046.40 : 215,344.06 = 84,426.38 : x
  2. Step 2: Convert to fraction form
    156,046.40/215,344.06 = 84,426.38/x
  3. Step 3: Cross multiply
    156,046.40x = 215,344.06 × 84,426.38
  4. Step 4: Simplify right side
    156,046.40x = 18,180,719,440.30
  5. Step 5: Solve for x
    x = 18,180,719,440.30/156,046.40
  6. Step 6: Final answer
    x = 116,508.42

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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.