Home / 99,449.18-149,173.77-81,882.10

Finding the Fourth Proportional to 99,449.18, 149,173.77 and 81,882.10

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Solution

The fourth proportional to 99,449.18, 149,173.77 and 81,882.10 is: 122,823.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,449.18 : 149,173.77 = 81,882.10 : x
  2. Step 2: Convert to fraction form
    99,449.18/149,173.77 = 81,882.10/x
  3. Step 3: Cross multiply
    99,449.18x = 149,173.77 × 81,882.10
  4. Step 4: Simplify right side
    99,449.18x = 12,214,662,046.04
  5. Step 5: Solve for x
    x = 12,214,662,046.04/99,449.18
  6. Step 6: Final answer
    x = 122,823.16

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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.