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Finding the Fourth Proportional to 155,394.58, 214,366.89 and 98,104.90

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Solution

The fourth proportional to 155,394.58, 214,366.89 and 98,104.90 is: 135,335.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,394.58 : 214,366.89 = 98,104.90 : x
  2. Step 2: Convert to fraction form
    155,394.58/214,366.89 = 98,104.90/x
  3. Step 3: Cross multiply
    155,394.58x = 214,366.89 × 98,104.90
  4. Step 4: Simplify right side
    155,394.58x = 21,030,442,306.76
  5. Step 5: Solve for x
    x = 21,030,442,306.76/155,394.58
  6. Step 6: Final answer
    x = 135,335.75

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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.