Home / 125,353.28-172,984.56-68,764.16

Finding the Fourth Proportional to 125,353.28, 172,984.56 and 68,764.16

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Solution

The fourth proportional to 125,353.28, 172,984.56 and 68,764.16 is: 94,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,353.28 : 172,984.56 = 68,764.16 : x
  2. Step 2: Convert to fraction form
    125,353.28/172,984.56 = 68,764.16/x
  3. Step 3: Cross multiply
    125,353.28x = 172,984.56 × 68,764.16
  4. Step 4: Simplify right side
    125,353.28x = 11,895,137,961.37
  5. Step 5: Solve for x
    x = 11,895,137,961.37/125,353.28
  6. Step 6: Final answer
    x = 94,892.91

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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.