Home / 125,334.28-172,972.25-68,756.59

Finding the Fourth Proportional to 125,334.28, 172,972.25 and 68,756.59

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Solution

The fourth proportional to 125,334.28, 172,972.25 and 68,756.59 is: 94,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,334.28 : 172,972.25 = 68,756.59 : x
  2. Step 2: Convert to fraction form
    125,334.28/172,972.25 = 68,756.59/x
  3. Step 3: Cross multiply
    125,334.28x = 172,972.25 × 68,756.59
  4. Step 4: Simplify right side
    125,334.28x = 11,892,982,074.63
  5. Step 5: Solve for x
    x = 11,892,982,074.63/125,334.28
  6. Step 6: Final answer
    x = 94,890.10

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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.