Home / 115,000.86-172,442.94-52,617.90

Finding the Fourth Proportional to 115,000.86, 172,442.94 and 52,617.90

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Solution

The fourth proportional to 115,000.86, 172,442.94 and 52,617.90 is: 78,900.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,000.86 : 172,442.94 = 52,617.90 : x
  2. Step 2: Convert to fraction form
    115,000.86/172,442.94 = 52,617.90/x
  3. Step 3: Cross multiply
    115,000.86x = 172,442.94 × 52,617.90
  4. Step 4: Simplify right side
    115,000.86x = 9,073,585,372.63
  5. Step 5: Solve for x
    x = 9,073,585,372.63/115,000.86
  6. Step 6: Final answer
    x = 78,900.15

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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.