Home / 125,003.07-172,508.36-68,414.45

Finding the Fourth Proportional to 125,003.07, 172,508.36 and 68,414.45

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Solution

The fourth proportional to 125,003.07, 172,508.36 and 68,414.45 is: 94,414.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,003.07 : 172,508.36 = 68,414.45 : x
  2. Step 2: Convert to fraction form
    125,003.07/172,508.36 = 68,414.45/x
  3. Step 3: Cross multiply
    125,003.07x = 172,508.36 × 68,414.45
  4. Step 4: Simplify right side
    125,003.07x = 11,802,064,396.93
  5. Step 5: Solve for x
    x = 11,802,064,396.93/125,003.07
  6. Step 6: Final answer
    x = 94,414.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.