Home / 80,862.70-121,294.05-73,864.30

Finding the Fourth Proportional to 80,862.70, 121,294.05 and 73,864.30

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Solution

The fourth proportional to 80,862.70, 121,294.05 and 73,864.30 is: 110,796.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,862.70 : 121,294.05 = 73,864.30 : x
  2. Step 2: Convert to fraction form
    80,862.70/121,294.05 = 73,864.30/x
  3. Step 3: Cross multiply
    80,862.70x = 121,294.05 × 73,864.30
  4. Step 4: Simplify right side
    80,862.70x = 8,959,300,097.42
  5. Step 5: Solve for x
    x = 8,959,300,097.42/80,862.70
  6. Step 6: Final answer
    x = 110,796.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.