Home / 125,274.09-172,882.35-68,685.47

Finding the Fourth Proportional to 125,274.09, 172,882.35 and 68,685.47

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Solution

The fourth proportional to 125,274.09, 172,882.35 and 68,685.47 is: 94,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,274.09 : 172,882.35 = 68,685.47 : x
  2. Step 2: Convert to fraction form
    125,274.09/172,882.35 = 68,685.47/x
  3. Step 3: Cross multiply
    125,274.09x = 172,882.35 × 68,685.47
  4. Step 4: Simplify right side
    125,274.09x = 11,874,505,248.35
  5. Step 5: Solve for x
    x = 11,874,505,248.35/125,274.09
  6. Step 6: Final answer
    x = 94,788.20

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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.