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Finding the Fourth Proportional to 99,608.10, 149,497.20 and 40,486.20

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Solution

The fourth proportional to 99,608.10, 149,497.20 and 40,486.20 is: 60,763.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,608.10 : 149,497.20 = 40,486.20 : x
  2. Step 2: Convert to fraction form
    99,608.10/149,497.20 = 40,486.20/x
  3. Step 3: Cross multiply
    99,608.10x = 149,497.20 × 40,486.20
  4. Step 4: Simplify right side
    99,608.10x = 6,052,573,538.64
  5. Step 5: Solve for x
    x = 6,052,573,538.64/99,608.10
  6. Step 6: Final answer
    x = 60,763.87

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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.