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Finding the Fourth Proportional to 132,532.06, 198,861.96 and 65,978.06

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Solution

The fourth proportional to 132,532.06, 198,861.96 and 65,978.06 is: 98,998.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,532.06 : 198,861.96 = 65,978.06 : x
  2. Step 2: Convert to fraction form
    132,532.06/198,861.96 = 65,978.06/x
  3. Step 3: Cross multiply
    132,532.06x = 198,861.96 × 65,978.06
  4. Step 4: Simplify right side
    132,532.06x = 13,120,526,328.60
  5. Step 5: Solve for x
    x = 13,120,526,328.60/132,532.06
  6. Step 6: Final answer
    x = 98,998.89

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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.