Home / 99,966.52-137,899.20-64,116.64

Finding the Fourth Proportional to 99,966.52, 137,899.20 and 64,116.64

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Solution

The fourth proportional to 99,966.52, 137,899.20 and 64,116.64 is: 88,445.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,966.52 : 137,899.20 = 64,116.64 : x
  2. Step 2: Convert to fraction form
    99,966.52/137,899.20 = 64,116.64/x
  3. Step 3: Cross multiply
    99,966.52x = 137,899.20 × 64,116.64
  4. Step 4: Simplify right side
    99,966.52x = 8,841,633,362.69
  5. Step 5: Solve for x
    x = 8,841,633,362.69/99,966.52
  6. Step 6: Final answer
    x = 88,445.95

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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.