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Finding the Fourth Proportional to 144,600.60, 216,728.10 and 74,443.80

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Solution

The fourth proportional to 144,600.60, 216,728.10 and 74,443.80 is: 111,576.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,600.60 : 216,728.10 = 74,443.80 : x
  2. Step 2: Convert to fraction form
    144,600.60/216,728.10 = 74,443.80/x
  3. Step 3: Cross multiply
    144,600.60x = 216,728.10 × 74,443.80
  4. Step 4: Simplify right side
    144,600.60x = 16,134,063,330.78
  5. Step 5: Solve for x
    x = 16,134,063,330.78/144,600.60
  6. Step 6: Final answer
    x = 111,576.74

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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.