Home / 99,788.76-137,705.07-59,481.75

Finding the Fourth Proportional to 99,788.76, 137,705.07 and 59,481.75

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Solution

The fourth proportional to 99,788.76, 137,705.07 and 59,481.75 is: 82,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,788.76 : 137,705.07 = 59,481.75 : x
  2. Step 2: Convert to fraction form
    99,788.76/137,705.07 = 59,481.75/x
  3. Step 3: Cross multiply
    99,788.76x = 137,705.07 × 59,481.75
  4. Step 4: Simplify right side
    99,788.76x = 8,190,938,547.47
  5. Step 5: Solve for x
    x = 8,190,938,547.47/99,788.76
  6. Step 6: Final answer
    x = 82,082.78

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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.