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Finding the Fourth Proportional to 98,218.20, 147,404.10 and 45,634.20

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Solution

The fourth proportional to 98,218.20, 147,404.10 and 45,634.20 is: 68,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,218.20 : 147,404.10 = 45,634.20 : x
  2. Step 2: Convert to fraction form
    98,218.20/147,404.10 = 45,634.20/x
  3. Step 3: Cross multiply
    98,218.20x = 147,404.10 × 45,634.20
  4. Step 4: Simplify right side
    98,218.20x = 6,726,668,180.22
  5. Step 5: Solve for x
    x = 6,726,668,180.22/98,218.20
  6. Step 6: Final answer
    x = 68,486.98

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1.5x scale

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.