Home / 99,908.20-137,866.66-55,195.24

Finding the Fourth Proportional to 99,908.20, 137,866.66 and 55,195.24

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Solution

The fourth proportional to 99,908.20, 137,866.66 and 55,195.24 is: 76,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,908.20 : 137,866.66 = 55,195.24 : x
  2. Step 2: Convert to fraction form
    99,908.20/137,866.66 = 55,195.24/x
  3. Step 3: Cross multiply
    99,908.20x = 137,866.66 × 55,195.24
  4. Step 4: Simplify right side
    99,908.20x = 7,609,583,386.70
  5. Step 5: Solve for x
    x = 7,609,583,386.70/99,908.20
  6. Step 6: Final answer
    x = 76,165.75

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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.