Home / 120,106.49-180,167.16-40,151.65

Finding the Fourth Proportional to 120,106.49, 180,167.16 and 40,151.65

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Solution

The fourth proportional to 120,106.49, 180,167.16 and 40,151.65 is: 60,229.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,106.49 : 180,167.16 = 40,151.65 : x
  2. Step 2: Convert to fraction form
    120,106.49/180,167.16 = 40,151.65/x
  3. Step 3: Cross multiply
    120,106.49x = 180,167.16 × 40,151.65
  4. Step 4: Simplify right side
    120,106.49x = 7,234,008,749.81
  5. Step 5: Solve for x
    x = 7,234,008,749.81/120,106.49
  6. Step 6: Final answer
    x = 60,229.96

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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.