Home / 99,535.38-149,254.47-43,422.90

Finding the Fourth Proportional to 99,535.38, 149,254.47 and 43,422.90

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Solution

The fourth proportional to 99,535.38, 149,254.47 and 43,422.90 is: 65,113.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,535.38 : 149,254.47 = 43,422.90 : x
  2. Step 2: Convert to fraction form
    99,535.38/149,254.47 = 43,422.90/x
  3. Step 3: Cross multiply
    99,535.38x = 149,254.47 × 43,422.90
  4. Step 4: Simplify right side
    99,535.38x = 6,481,061,925.36
  5. Step 5: Solve for x
    x = 6,481,061,925.36/99,535.38
  6. Step 6: Final answer
    x = 65,113.15

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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.