Home / 132,200.40-198,430.20-65,715.60

Finding the Fourth Proportional to 132,200.40, 198,430.20 and 65,715.60

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Solution

The fourth proportional to 132,200.40, 198,430.20 and 65,715.60 is: 98,637.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,200.40 : 198,430.20 = 65,715.60 : x
  2. Step 2: Convert to fraction form
    132,200.40/198,430.20 = 65,715.60/x
  3. Step 3: Cross multiply
    132,200.40x = 198,430.20 × 65,715.60
  4. Step 4: Simplify right side
    132,200.40x = 13,039,959,651.12
  5. Step 5: Solve for x
    x = 13,039,959,651.12/132,200.40
  6. Step 6: Final answer
    x = 98,637.82

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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.