Home / 120,004.20-179,862.30-49,847.40

Finding the Fourth Proportional to 120,004.20, 179,862.30 and 49,847.40

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Solution

The fourth proportional to 120,004.20, 179,862.30 and 49,847.40 is: 74,711.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,004.20 : 179,862.30 = 49,847.40 : x
  2. Step 2: Convert to fraction form
    120,004.20/179,862.30 = 49,847.40/x
  3. Step 3: Cross multiply
    120,004.20x = 179,862.30 × 49,847.40
  4. Step 4: Simplify right side
    120,004.20x = 8,965,668,013.02
  5. Step 5: Solve for x
    x = 8,965,668,013.02/120,004.20
  6. Step 6: Final answer
    x = 74,711.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.