Home / 120,067.52-180,223.15-60,138.94

Finding the Fourth Proportional to 120,067.52, 180,223.15 and 60,138.94

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Solution

The fourth proportional to 120,067.52, 180,223.15 and 60,138.94 is: 90,269.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,067.52 : 180,223.15 = 60,138.94 : x
  2. Step 2: Convert to fraction form
    120,067.52/180,223.15 = 60,138.94/x
  3. Step 3: Cross multiply
    120,067.52x = 180,223.15 × 60,138.94
  4. Step 4: Simplify right side
    120,067.52x = 10,838,428,040.21
  5. Step 5: Solve for x
    x = 10,838,428,040.21/120,067.52
  6. Step 6: Final answer
    x = 90,269.44

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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.