Home / 120,111.44-180,021.48-88,225.88

Finding the Fourth Proportional to 120,111.44, 180,021.48 and 88,225.88

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Solution

The fourth proportional to 120,111.44, 180,021.48 and 88,225.88 is: 132,231.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,111.44 : 180,021.48 = 88,225.88 : x
  2. Step 2: Convert to fraction form
    120,111.44/180,021.48 = 88,225.88/x
  3. Step 3: Cross multiply
    120,111.44x = 180,021.48 × 88,225.88
  4. Step 4: Simplify right side
    120,111.44x = 15,882,553,491.90
  5. Step 5: Solve for x
    x = 15,882,553,491.90/120,111.44
  6. Step 6: Final answer
    x = 132,231.81

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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.