Home / 120,103.20-180,003.60-60,955.20

Finding the Fourth Proportional to 120,103.20, 180,003.60 and 60,955.20

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Solution

The fourth proportional to 120,103.20, 180,003.60 and 60,955.20 is: 91,356.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,103.20 : 180,003.60 = 60,955.20 : x
  2. Step 2: Convert to fraction form
    120,103.20/180,003.60 = 60,955.20/x
  3. Step 3: Cross multiply
    120,103.20x = 180,003.60 × 60,955.20
  4. Step 4: Simplify right side
    120,103.20x = 10,972,155,438.72
  5. Step 5: Solve for x
    x = 10,972,155,438.72/120,103.20
  6. Step 6: Final answer
    x = 91,356.06

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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.