Home / 109,624.20-151,274.28-61,871.04

Finding the Fourth Proportional to 109,624.20, 151,274.28 and 61,871.04

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Solution

The fourth proportional to 109,624.20, 151,274.28 and 61,871.04 is: 85,378.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,624.20 : 151,274.28 = 61,871.04 : x
  2. Step 2: Convert to fraction form
    109,624.20/151,274.28 = 61,871.04/x
  3. Step 3: Cross multiply
    109,624.20x = 151,274.28 × 61,871.04
  4. Step 4: Simplify right side
    109,624.20x = 9,359,497,028.85
  5. Step 5: Solve for x
    x = 9,359,497,028.85/109,624.20
  6. Step 6: Final answer
    x = 85,378.02

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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.