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Finding the Fourth Proportional to 98,110.80, 147,253.68 and 45,549.90

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Solution

The fourth proportional to 98,110.80, 147,253.68 and 45,549.90 is: 68,365.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,110.80 : 147,253.68 = 45,549.90 : x
  2. Step 2: Convert to fraction form
    98,110.80/147,253.68 = 45,549.90/x
  3. Step 3: Cross multiply
    98,110.80x = 147,253.68 × 45,549.90
  4. Step 4: Simplify right side
    98,110.80x = 6,707,390,398.63
  5. Step 5: Solve for x
    x = 6,707,390,398.63/98,110.80
  6. Step 6: Final answer
    x = 68,365.46

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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.