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Finding the Fourth Proportional to 148,302.80, 222,454.20 and 86,133.20

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Solution

The fourth proportional to 148,302.80, 222,454.20 and 86,133.20 is: 129,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,302.80 : 222,454.20 = 86,133.20 : x
  2. Step 2: Convert to fraction form
    148,302.80/222,454.20 = 86,133.20/x
  3. Step 3: Cross multiply
    148,302.80x = 222,454.20 × 86,133.20
  4. Step 4: Simplify right side
    148,302.80x = 19,160,692,099.44
  5. Step 5: Solve for x
    x = 19,160,692,099.44/148,302.80
  6. Step 6: Final answer
    x = 129,199.80

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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.