Home / 99,799.31-137,489.09-69,529.88

Finding the Fourth Proportional to 99,799.31, 137,489.09 and 69,529.88

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Solution

The fourth proportional to 99,799.31, 137,489.09 and 69,529.88 is: 95,788.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,799.31 : 137,489.09 = 69,529.88 : x
  2. Step 2: Convert to fraction form
    99,799.31/137,489.09 = 69,529.88/x
  3. Step 3: Cross multiply
    99,799.31x = 137,489.09 × 69,529.88
  4. Step 4: Simplify right side
    99,799.31x = 9,559,598,893.91
  5. Step 5: Solve for x
    x = 9,559,598,893.91/99,799.31
  6. Step 6: Final answer
    x = 95,788.23

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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.