Home / 99,280.16-148,920.12-40,115.82

Finding the Fourth Proportional to 99,280.16, 148,920.12 and 40,115.82

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Solution

The fourth proportional to 99,280.16, 148,920.12 and 40,115.82 is: 60,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,280.16 : 148,920.12 = 40,115.82 : x
  2. Step 2: Convert to fraction form
    99,280.16/148,920.12 = 40,115.82/x
  3. Step 3: Cross multiply
    99,280.16x = 148,920.12 × 40,115.82
  4. Step 4: Simplify right side
    99,280.16x = 5,974,052,728.30
  5. Step 5: Solve for x
    x = 5,974,052,728.30/99,280.16
  6. Step 6: Final answer
    x = 60,173.68

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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.