Home / 132,068.64-198,135-75,944.64

Finding the Fourth Proportional to 132,068.64, 198,135 and 75,944.64

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Solution

The fourth proportional to 132,068.64, 198,135 and 75,944.64 is: 113,935.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,068.64 : 198,135 = 75,944.64 : x
  2. Step 2: Convert to fraction form
    132,068.64/198,135 = 75,944.64/x
  3. Step 3: Cross multiply
    132,068.64x = 198,135 × 75,944.64
  4. Step 4: Simplify right side
    132,068.64x = 15,047,291,246.40
  5. Step 5: Solve for x
    x = 15,047,291,246.40/132,068.64
  6. Step 6: Final answer
    x = 113,935.38

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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.