Home / 121,694,134.25-167,938,052.89-65,939,511.53

Finding the Fourth Proportional to 121,694,134.25, 167,938,052.89 and 65,939,511.53

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Solution

The fourth proportional to 121,694,134.25, 167,938,052.89 and 65,939,511.53 is: 90,996,605.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,694,134.25 : 167,938,052.89 = 65,939,511.53 : x
  2. Step 2: Convert to fraction form
    121,694,134.25/167,938,052.89 = 65,939,511.53/x
  3. Step 3: Cross multiply
    121,694,134.25x = 167,938,052.89 × 65,939,511.53
  4. Step 4: Simplify right side
    121,694,134.25x = 11,073,753,175,120,900
  5. Step 5: Solve for x
    x = 11,073,753,175,120,900/121,694,134.25
  6. Step 6: Final answer
    x = 90,996,605.90

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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.