Home / 132,122.64-198,109.70-43,368.72

Finding the Fourth Proportional to 132,122.64, 198,109.70 and 43,368.72

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Solution

The fourth proportional to 132,122.64, 198,109.70 and 43,368.72 is: 65,028.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,122.64 : 198,109.70 = 43,368.72 : x
  2. Step 2: Convert to fraction form
    132,122.64/198,109.70 = 43,368.72/x
  3. Step 3: Cross multiply
    132,122.64x = 198,109.70 × 43,368.72
  4. Step 4: Simplify right side
    132,122.64x = 8,591,763,311.46
  5. Step 5: Solve for x
    x = 8,591,763,311.46/132,122.64
  6. Step 6: Final answer
    x = 65,028.70

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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.