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Finding the Fourth Proportional to 180,122.88, 270,038.48 and 75,020.52

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Solution

The fourth proportional to 180,122.88, 270,038.48 and 75,020.52 is: 112,470.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,122.88 : 270,038.48 = 75,020.52 : x
  2. Step 2: Convert to fraction form
    180,122.88/270,038.48 = 75,020.52/x
  3. Step 3: Cross multiply
    180,122.88x = 270,038.48 × 75,020.52
  4. Step 4: Simplify right side
    180,122.88x = 20,258,427,189.61
  5. Step 5: Solve for x
    x = 20,258,427,189.61/180,122.88
  6. Step 6: Final answer
    x = 112,470.04

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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.