Home / 172,317.87-258,603.17-113,132.79

Finding the Fourth Proportional to 172,317.87, 258,603.17 and 113,132.79

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Solution

The fourth proportional to 172,317.87, 258,603.17 and 113,132.79 is: 169,782.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,317.87 : 258,603.17 = 113,132.79 : x
  2. Step 2: Convert to fraction form
    172,317.87/258,603.17 = 113,132.79/x
  3. Step 3: Cross multiply
    172,317.87x = 258,603.17 × 113,132.79
  4. Step 4: Simplify right side
    172,317.87x = 29,256,497,559.28
  5. Step 5: Solve for x
    x = 29,256,497,559.28/172,317.87
  6. Step 6: Final answer
    x = 169,782.14

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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.