Home / 151,631.75-209,184.18-87,932.66

Finding the Fourth Proportional to 151,631.75, 209,184.18 and 87,932.66

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Solution

The fourth proportional to 151,631.75, 209,184.18 and 87,932.66 is: 121,307.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,631.75 : 209,184.18 = 87,932.66 : x
  2. Step 2: Convert to fraction form
    151,631.75/209,184.18 = 87,932.66/x
  3. Step 3: Cross multiply
    151,631.75x = 209,184.18 × 87,932.66
  4. Step 4: Simplify right side
    151,631.75x = 18,394,121,377.32
  5. Step 5: Solve for x
    x = 18,394,121,377.32/151,631.75
  6. Step 6: Final answer
    x = 121,307.85

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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.