Home / 125,111.52-172,648.26-68,521.68

Finding the Fourth Proportional to 125,111.52, 172,648.26 and 68,521.68

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Solution

The fourth proportional to 125,111.52, 172,648.26 and 68,521.68 is: 94,556.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,111.52 : 172,648.26 = 68,521.68 : x
  2. Step 2: Convert to fraction form
    125,111.52/172,648.26 = 68,521.68/x
  3. Step 3: Cross multiply
    125,111.52x = 172,648.26 × 68,521.68
  4. Step 4: Simplify right side
    125,111.52x = 11,830,148,824.28
  5. Step 5: Solve for x
    x = 11,830,148,824.28/125,111.52
  6. Step 6: Final answer
    x = 94,556.83

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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.