Home / 99,901.20-137,583-97,723.92

Finding the Fourth Proportional to 99,901.20, 137,583 and 97,723.92

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Solution

The fourth proportional to 99,901.20, 137,583 and 97,723.92 is: 134,584.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,901.20 : 137,583 = 97,723.92 : x
  2. Step 2: Convert to fraction form
    99,901.20/137,583 = 97,723.92/x
  3. Step 3: Cross multiply
    99,901.20x = 137,583 × 97,723.92
  4. Step 4: Simplify right side
    99,901.20x = 13,445,150,085.36
  5. Step 5: Solve for x
    x = 13,445,150,085.36/99,901.20
  6. Step 6: Final answer
    x = 134,584.47

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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.