Home / 115,439.25-173,032.79-73,338.15

Finding the Fourth Proportional to 115,439.25, 173,032.79 and 73,338.15

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Solution

The fourth proportional to 115,439.25, 173,032.79 and 73,338.15 is: 109,927.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,439.25 : 173,032.79 = 73,338.15 : x
  2. Step 2: Convert to fraction form
    115,439.25/173,032.79 = 73,338.15/x
  3. Step 3: Cross multiply
    115,439.25x = 173,032.79 × 73,338.15
  4. Step 4: Simplify right side
    115,439.25x = 12,689,904,341.25
  5. Step 5: Solve for x
    x = 12,689,904,341.25/115,439.25
  6. Step 6: Final answer
    x = 109,927.12

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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.