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Finding the Fourth Proportional to 98,023.62, 135,275.58 and 69,394.40

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Solution

The fourth proportional to 98,023.62, 135,275.58 and 69,394.40 is: 95,766.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,023.62 : 135,275.58 = 69,394.40 : x
  2. Step 2: Convert to fraction form
    98,023.62/135,275.58 = 69,394.40/x
  3. Step 3: Cross multiply
    98,023.62x = 135,275.58 × 69,394.40
  4. Step 4: Simplify right side
    98,023.62x = 9,387,367,708.75
  5. Step 5: Solve for x
    x = 9,387,367,708.75/98,023.62
  6. Step 6: Final answer
    x = 95,766.38

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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.