Home / 156,084.38-215,394.78-84,462.80

Finding the Fourth Proportional to 156,084.38, 215,394.78 and 84,462.80

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Solution

The fourth proportional to 156,084.38, 215,394.78 and 84,462.80 is: 116,557.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,084.38 : 215,394.78 = 84,462.80 : x
  2. Step 2: Convert to fraction form
    156,084.38/215,394.78 = 84,462.80/x
  3. Step 3: Cross multiply
    156,084.38x = 215,394.78 × 84,462.80
  4. Step 4: Simplify right side
    156,084.38x = 18,192,846,224.18
  5. Step 5: Solve for x
    x = 18,192,846,224.18/156,084.38
  6. Step 6: Final answer
    x = 116,557.76

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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.