Home / 125,016.84-172,523.30-68,428.52

Finding the Fourth Proportional to 125,016.84, 172,523.30 and 68,428.52

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Solution

The fourth proportional to 125,016.84, 172,523.30 and 68,428.52 is: 94,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,016.84 : 172,523.30 = 68,428.52 : x
  2. Step 2: Convert to fraction form
    125,016.84/172,523.30 = 68,428.52/x
  3. Step 3: Cross multiply
    125,016.84x = 172,523.30 × 68,428.52
  4. Step 4: Simplify right side
    125,016.84x = 11,805,514,084.52
  5. Step 5: Solve for x
    x = 11,805,514,084.52/125,016.84
  6. Step 6: Final answer
    x = 94,431.39

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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.