Home / 103,534.20-155,301.30-98,613.45

Finding the Fourth Proportional to 103,534.20, 155,301.30 and 98,613.45

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Solution

The fourth proportional to 103,534.20, 155,301.30 and 98,613.45 is: 147,920.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,534.20 : 155,301.30 = 98,613.45 : x
  2. Step 2: Convert to fraction form
    103,534.20/155,301.30 = 98,613.45/x
  3. Step 3: Cross multiply
    103,534.20x = 155,301.30 × 98,613.45
  4. Step 4: Simplify right side
    103,534.20x = 15,314,796,982.49
  5. Step 5: Solve for x
    x = 15,314,796,982.49/103,534.20
  6. Step 6: Final answer
    x = 147,920.18

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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.