Home / 156,721.38-235,081.55-56,881.44

Finding the Fourth Proportional to 156,721.38, 235,081.55 and 56,881.44

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Solution

The fourth proportional to 156,721.38, 235,081.55 and 56,881.44 is: 85,321.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,721.38 : 235,081.55 = 56,881.44 : x
  2. Step 2: Convert to fraction form
    156,721.38/235,081.55 = 56,881.44/x
  3. Step 3: Cross multiply
    156,721.38x = 235,081.55 × 56,881.44
  4. Step 4: Simplify right side
    156,721.38x = 13,371,775,906.02
  5. Step 5: Solve for x
    x = 13,371,775,906.02/156,721.38
  6. Step 6: Final answer
    x = 85,321.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.