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Finding the Fourth Proportional to 132,186.80, 198,280.20 and 65,637.20

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Solution

The fourth proportional to 132,186.80, 198,280.20 and 65,637.20 is: 98,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,186.80 : 198,280.20 = 65,637.20 : x
  2. Step 2: Convert to fraction form
    132,186.80/198,280.20 = 65,637.20/x
  3. Step 3: Cross multiply
    132,186.80x = 198,280.20 × 65,637.20
  4. Step 4: Simplify right side
    132,186.80x = 13,014,557,143.44
  5. Step 5: Solve for x
    x = 13,014,557,143.44/132,186.80
  6. Step 6: Final answer
    x = 98,455.80

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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.