Home / 99,371.12-149,053.23-28,294.20

Finding the Fourth Proportional to 99,371.12, 149,053.23 and 28,294.20

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Solution

The fourth proportional to 99,371.12, 149,053.23 and 28,294.20 is: 42,440.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,371.12 : 149,053.23 = 28,294.20 : x
  2. Step 2: Convert to fraction form
    99,371.12/149,053.23 = 28,294.20/x
  3. Step 3: Cross multiply
    99,371.12x = 149,053.23 × 28,294.20
  4. Step 4: Simplify right side
    99,371.12x = 4,217,341,900.27
  5. Step 5: Solve for x
    x = 4,217,341,900.27/99,371.12
  6. Step 6: Final answer
    x = 42,440.32

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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.