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Finding the Fourth Proportional to 147,486.30, 221,344.65 and 68,610.30

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Solution

The fourth proportional to 147,486.30, 221,344.65 and 68,610.30 is: 102,969.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,486.30 : 221,344.65 = 68,610.30 : x
  2. Step 2: Convert to fraction form
    147,486.30/221,344.65 = 68,610.30/x
  3. Step 3: Cross multiply
    147,486.30x = 221,344.65 × 68,610.30
  4. Step 4: Simplify right side
    147,486.30x = 15,186,522,839.90
  5. Step 5: Solve for x
    x = 15,186,522,839.90/147,486.30
  6. Step 6: Final answer
    x = 102,969.04

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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.