Home / 112,731.85-155,495.10-72,496.52

Finding the Fourth Proportional to 112,731.85, 155,495.10 and 72,496.52

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Solution

The fourth proportional to 112,731.85, 155,495.10 and 72,496.52 is: 99,997.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,731.85 : 155,495.10 = 72,496.52 : x
  2. Step 2: Convert to fraction form
    112,731.85/155,495.10 = 72,496.52/x
  3. Step 3: Cross multiply
    112,731.85x = 155,495.10 × 72,496.52
  4. Step 4: Simplify right side
    112,731.85x = 11,272,853,121.44
  5. Step 5: Solve for x
    x = 11,272,853,121.44/112,731.85
  6. Step 6: Final answer
    x = 99,997.06

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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.