Home / 136,085.57-203,691.62-72,747.35

Finding the Fourth Proportional to 136,085.57, 203,691.62 and 72,747.35

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Solution

The fourth proportional to 136,085.57, 203,691.62 and 72,747.35 is: 108,887.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,085.57 : 203,691.62 = 72,747.35 : x
  2. Step 2: Convert to fraction form
    136,085.57/203,691.62 = 72,747.35/x
  3. Step 3: Cross multiply
    136,085.57x = 203,691.62 × 72,747.35
  4. Step 4: Simplify right side
    136,085.57x = 14,818,025,208.47
  5. Step 5: Solve for x
    x = 14,818,025,208.47/136,085.57
  6. Step 6: Final answer
    x = 108,887.56

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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.