Home / 151,286.54-208,803.42-87,624.32

Finding the Fourth Proportional to 151,286.54, 208,803.42 and 87,624.32

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Solution

The fourth proportional to 151,286.54, 208,803.42 and 87,624.32 is: 120,937.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,286.54 : 208,803.42 = 87,624.32 : x
  2. Step 2: Convert to fraction form
    151,286.54/208,803.42 = 87,624.32/x
  3. Step 3: Cross multiply
    151,286.54x = 208,803.42 × 87,624.32
  4. Step 4: Simplify right side
    151,286.54x = 18,296,257,691.17
  5. Step 5: Solve for x
    x = 18,296,257,691.17/151,286.54
  6. Step 6: Final answer
    x = 120,937.78

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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.