Home / 121,505.20-182,257.80-111,882.40

Finding the Fourth Proportional to 121,505.20, 182,257.80 and 111,882.40

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Solution

The fourth proportional to 121,505.20, 182,257.80 and 111,882.40 is: 167,823.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,505.20 : 182,257.80 = 111,882.40 : x
  2. Step 2: Convert to fraction form
    121,505.20/182,257.80 = 111,882.40/x
  3. Step 3: Cross multiply
    121,505.20x = 182,257.80 × 111,882.40
  4. Step 4: Simplify right side
    121,505.20x = 20,391,440,082.72
  5. Step 5: Solve for x
    x = 20,391,440,082.72/121,505.20
  6. Step 6: Final answer
    x = 167,823.60

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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.