Home / 154,542.11-213,253.76-87,474.11

Finding the Fourth Proportional to 154,542.11, 213,253.76 and 87,474.11

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Solution

The fourth proportional to 154,542.11, 213,253.76 and 87,474.11 is: 120,706.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,542.11 : 213,253.76 = 87,474.11 : x
  2. Step 2: Convert to fraction form
    154,542.11/213,253.76 = 87,474.11/x
  3. Step 3: Cross multiply
    154,542.11x = 213,253.76 × 87,474.11
  4. Step 4: Simplify right side
    154,542.11x = 18,654,182,860.15
  5. Step 5: Solve for x
    x = 18,654,182,860.15/154,542.11
  6. Step 6: Final answer
    x = 120,706.15

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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.