Home / 120,218.59-180,344.30-50,081.50

Finding the Fourth Proportional to 120,218.59, 180,344.30 and 50,081.50

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Solution

The fourth proportional to 120,218.59, 180,344.30 and 50,081.50 is: 75,129.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,218.59 : 180,344.30 = 50,081.50 : x
  2. Step 2: Convert to fraction form
    120,218.59/180,344.30 = 50,081.50/x
  3. Step 3: Cross multiply
    120,218.59x = 180,344.30 × 50,081.50
  4. Step 4: Simplify right side
    120,218.59x = 9,031,913,060.45
  5. Step 5: Solve for x
    x = 9,031,913,060.45/120,218.59
  6. Step 6: Final answer
    x = 75,129.09

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1.5x scale

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.