Home / 156,071.43-215,377.65-84,450.87

Finding the Fourth Proportional to 156,071.43, 215,377.65 and 84,450.87

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Solution

The fourth proportional to 156,071.43, 215,377.65 and 84,450.87 is: 116,541.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,071.43 : 215,377.65 = 84,450.87 : x
  2. Step 2: Convert to fraction form
    156,071.43/215,377.65 = 84,450.87/x
  3. Step 3: Cross multiply
    156,071.43x = 215,377.65 × 84,450.87
  4. Step 4: Simplify right side
    156,071.43x = 18,188,829,921.06
  5. Step 5: Solve for x
    x = 18,188,829,921.06/156,071.43
  6. Step 6: Final answer
    x = 116,541.70

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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.