Home / 115,146.12-172,644.66-48,568.38

Finding the Fourth Proportional to 115,146.12, 172,644.66 and 48,568.38

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Solution

The fourth proportional to 115,146.12, 172,644.66 and 48,568.38 is: 72,821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,146.12 : 172,644.66 = 48,568.38 : x
  2. Step 2: Convert to fraction form
    115,146.12/172,644.66 = 48,568.38/x
  3. Step 3: Cross multiply
    115,146.12x = 172,644.66 × 48,568.38
  4. Step 4: Simplify right side
    115,146.12x = 8,385,071,451.85
  5. Step 5: Solve for x
    x = 8,385,071,451.85/115,146.12
  6. Step 6: Final answer
    x = 72,821.14

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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.