Home / 99,617.30-149,507.55-98,839.70

Finding the Fourth Proportional to 99,617.30, 149,507.55 and 98,839.70

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Solution

The fourth proportional to 99,617.30, 149,507.55 and 98,839.70 is: 148,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,617.30 : 149,507.55 = 98,839.70 : x
  2. Step 2: Convert to fraction form
    99,617.30/149,507.55 = 98,839.70/x
  3. Step 3: Cross multiply
    99,617.30x = 149,507.55 × 98,839.70
  4. Step 4: Simplify right side
    99,617.30x = 14,777,281,389.74
  5. Step 5: Solve for x
    x = 14,777,281,389.74/99,617.30
  6. Step 6: Final answer
    x = 148,340.51

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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.