Home / 99,861.78-149,784.45-29,741.10

Finding the Fourth Proportional to 99,861.78, 149,784.45 and 29,741.10

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Solution

The fourth proportional to 99,861.78, 149,784.45 and 29,741.10 is: 44,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,861.78 : 149,784.45 = 29,741.10 : x
  2. Step 2: Convert to fraction form
    99,861.78/149,784.45 = 29,741.10/x
  3. Step 3: Cross multiply
    99,861.78x = 149,784.45 × 29,741.10
  4. Step 4: Simplify right side
    99,861.78x = 4,454,754,305.90
  5. Step 5: Solve for x
    x = 4,454,754,305.90/99,861.78
  6. Step 6: Final answer
    x = 44,609.20

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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.