Home / 120,717.27-181,195.14-90,626.88

Finding the Fourth Proportional to 120,717.27, 181,195.14 and 90,626.88

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Solution

The fourth proportional to 120,717.27, 181,195.14 and 90,626.88 is: 136,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,717.27 : 181,195.14 = 90,626.88 : x
  2. Step 2: Convert to fraction form
    120,717.27/181,195.14 = 90,626.88/x
  3. Step 3: Cross multiply
    120,717.27x = 181,195.14 × 90,626.88
  4. Step 4: Simplify right side
    120,717.27x = 16,421,151,228.70
  5. Step 5: Solve for x
    x = 16,421,151,228.70/120,717.27
  6. Step 6: Final answer
    x = 136,029.84

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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.