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Finding the Fourth Proportional to 108,052.40, 148,933.86 and 72,229.34

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Solution

The fourth proportional to 108,052.40, 148,933.86 and 72,229.34 is: 99,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,052.40 : 148,933.86 = 72,229.34 : x
  2. Step 2: Convert to fraction form
    108,052.40/148,933.86 = 72,229.34/x
  3. Step 3: Cross multiply
    108,052.40x = 148,933.86 × 72,229.34
  4. Step 4: Simplify right side
    108,052.40x = 10,757,394,512.93
  5. Step 5: Solve for x
    x = 10,757,394,512.93/108,052.40
  6. Step 6: Final answer
    x = 99,557.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.