Home / 132,981.60-198,986.40-97,989.60

Finding the Fourth Proportional to 132,981.60, 198,986.40 and 97,989.60

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Solution

The fourth proportional to 132,981.60, 198,986.40 and 97,989.60 is: 146,626.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,981.60 : 198,986.40 = 97,989.60 : x
  2. Step 2: Convert to fraction form
    132,981.60/198,986.40 = 97,989.60/x
  3. Step 3: Cross multiply
    132,981.60x = 198,986.40 × 97,989.60
  4. Step 4: Simplify right side
    132,981.60x = 19,498,597,741.44
  5. Step 5: Solve for x
    x = 19,498,597,741.44/132,981.60
  6. Step 6: Final answer
    x = 146,626.28

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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.