Home / 132,122.40-198,313.20-65,637.60

Finding the Fourth Proportional to 132,122.40, 198,313.20 and 65,637.60

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Solution

The fourth proportional to 132,122.40, 198,313.20 and 65,637.60 is: 98,520.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,122.40 : 198,313.20 = 65,637.60 : x
  2. Step 2: Convert to fraction form
    132,122.40/198,313.20 = 65,637.60/x
  3. Step 3: Cross multiply
    132,122.40x = 198,313.20 × 65,637.60
  4. Step 4: Simplify right side
    132,122.40x = 13,016,802,496.32
  5. Step 5: Solve for x
    x = 13,016,802,496.32/132,122.40
  6. Step 6: Final answer
    x = 98,520.78

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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.