Home / 132,355.20-198,532.80-70,147.20

Finding the Fourth Proportional to 132,355.20, 198,532.80 and 70,147.20

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Solution

The fourth proportional to 132,355.20, 198,532.80 and 70,147.20 is: 105,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,355.20 : 198,532.80 = 70,147.20 : x
  2. Step 2: Convert to fraction form
    132,355.20/198,532.80 = 70,147.20/x
  3. Step 3: Cross multiply
    132,355.20x = 198,532.80 × 70,147.20
  4. Step 4: Simplify right side
    132,355.20x = 13,926,520,028.16
  5. Step 5: Solve for x
    x = 13,926,520,028.16/132,355.20
  6. Step 6: Final answer
    x = 105,220.80

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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.