Home / 99,815.10-149,722.65-60,449.10

Finding the Fourth Proportional to 99,815.10, 149,722.65 and 60,449.10

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Solution

The fourth proportional to 99,815.10, 149,722.65 and 60,449.10 is: 90,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,815.10 : 149,722.65 = 60,449.10 : x
  2. Step 2: Convert to fraction form
    99,815.10/149,722.65 = 60,449.10/x
  3. Step 3: Cross multiply
    99,815.10x = 149,722.65 × 60,449.10
  4. Step 4: Simplify right side
    99,815.10x = 9,050,599,442.12
  5. Step 5: Solve for x
    x = 9,050,599,442.12/99,815.10
  6. Step 6: Final answer
    x = 90,673.65

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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.