Home / 121,734,972.56-167,996,308.92-65,982,160.64

Finding the Fourth Proportional to 121,734,972.56, 167,996,308.92 and 65,982,160.64

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Solution

The fourth proportional to 121,734,972.56, 167,996,308.92 and 65,982,160.64 is: 91,056,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,734,972.56 : 167,996,308.92 = 65,982,160.64 : x
  2. Step 2: Convert to fraction form
    121,734,972.56/167,996,308.92 = 65,982,160.64/x
  3. Step 3: Cross multiply
    121,734,972.56x = 167,996,308.92 × 65,982,160.64
  4. Step 4: Simplify right side
    121,734,972.56x = 11,084,759,442,086,504
  5. Step 5: Solve for x
    x = 11,084,759,442,086,504/121,734,972.56
  6. Step 6: Final answer
    x = 91,056,491.07

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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.