Home / 99,974.34-137,960.40-59,164.92

Finding the Fourth Proportional to 99,974.34, 137,960.40 and 59,164.92

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Solution

The fourth proportional to 99,974.34, 137,960.40 and 59,164.92 is: 81,645.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,974.34 : 137,960.40 = 59,164.92 : x
  2. Step 2: Convert to fraction form
    99,974.34/137,960.40 = 59,164.92/x
  3. Step 3: Cross multiply
    99,974.34x = 137,960.40 × 59,164.92
  4. Step 4: Simplify right side
    99,974.34x = 8,162,416,029.17
  5. Step 5: Solve for x
    x = 8,162,416,029.17/99,974.34
  6. Step 6: Final answer
    x = 81,645.11

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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.