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Finding the Fourth Proportional to 148,099.20, 222,148.80 and 138,184.80

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Solution

The fourth proportional to 148,099.20, 222,148.80 and 138,184.80 is: 207,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,099.20 : 222,148.80 = 138,184.80 : x
  2. Step 2: Convert to fraction form
    148,099.20/222,148.80 = 138,184.80/x
  3. Step 3: Cross multiply
    148,099.20x = 222,148.80 × 138,184.80
  4. Step 4: Simplify right side
    148,099.20x = 30,697,587,498.24
  5. Step 5: Solve for x
    x = 30,697,587,498.24/148,099.20
  6. Step 6: Final answer
    x = 207,277.20

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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.