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Finding the Fourth Proportional to 97,278.80, 134,311.56 and 73,432.40

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Solution

The fourth proportional to 97,278.80, 134,311.56 and 73,432.40 is: 101,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,278.80 : 134,311.56 = 73,432.40 : x
  2. Step 2: Convert to fraction form
    97,278.80/134,311.56 = 73,432.40/x
  3. Step 3: Cross multiply
    97,278.80x = 134,311.56 × 73,432.40
  4. Step 4: Simplify right side
    97,278.80x = 9,862,820,198.54
  5. Step 5: Solve for x
    x = 9,862,820,198.54/97,278.80
  6. Step 6: Final answer
    x = 101,387.15

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1.5x scale

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.