Home / 99,574.40-149,361.30-82,007.12

Finding the Fourth Proportional to 99,574.40, 149,361.30 and 82,007.12

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Solution

The fourth proportional to 99,574.40, 149,361.30 and 82,007.12 is: 123,010.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,574.40 : 149,361.30 = 82,007.12 : x
  2. Step 2: Convert to fraction form
    99,574.40/149,361.30 = 82,007.12/x
  3. Step 3: Cross multiply
    99,574.40x = 149,361.30 × 82,007.12
  4. Step 4: Simplify right side
    99,574.40x = 12,248,690,052.46
  5. Step 5: Solve for x
    x = 12,248,690,052.46/99,574.40
  6. Step 6: Final answer
    x = 123,010.43

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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.