Home / 99,366.20-149,045.88-28,289.28

Finding the Fourth Proportional to 99,366.20, 149,045.88 and 28,289.28

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Solution

The fourth proportional to 99,366.20, 149,045.88 and 28,289.28 is: 42,432.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,366.20 : 149,045.88 = 28,289.28 : x
  2. Step 2: Convert to fraction form
    99,366.20/149,045.88 = 28,289.28/x
  3. Step 3: Cross multiply
    99,366.20x = 149,045.88 × 28,289.28
  4. Step 4: Simplify right side
    99,366.20x = 4,216,400,632.17
  5. Step 5: Solve for x
    x = 4,216,400,632.17/99,366.20
  6. Step 6: Final answer
    x = 42,432.95

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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.