Home / 132,386.32-198,568.68-43,638.40

Finding the Fourth Proportional to 132,386.32, 198,568.68 and 43,638.40

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Solution

The fourth proportional to 132,386.32, 198,568.68 and 43,638.40 is: 65,454.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,386.32 : 198,568.68 = 43,638.40 : x
  2. Step 2: Convert to fraction form
    132,386.32/198,568.68 = 43,638.40/x
  3. Step 3: Cross multiply
    132,386.32x = 198,568.68 × 43,638.40
  4. Step 4: Simplify right side
    132,386.32x = 8,665,219,485.31
  5. Step 5: Solve for x
    x = 8,665,219,485.31/132,386.32
  6. Step 6: Final answer
    x = 65,454.04

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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.