Home / 132,138.10-198,231.90-43,417.18

Finding the Fourth Proportional to 132,138.10, 198,231.90 and 43,417.18

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Solution

The fourth proportional to 132,138.10, 198,231.90 and 43,417.18 is: 65,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,138.10 : 198,231.90 = 43,417.18 : x
  2. Step 2: Convert to fraction form
    132,138.10/198,231.90 = 43,417.18/x
  3. Step 3: Cross multiply
    132,138.10x = 198,231.90 × 43,417.18
  4. Step 4: Simplify right side
    132,138.10x = 8,606,670,084.04
  5. Step 5: Solve for x
    x = 8,606,670,084.04/132,138.10
  6. Step 6: Final answer
    x = 65,133.90

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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.