Home / 134,540.20-201,963.90-79,167.40

Finding the Fourth Proportional to 134,540.20, 201,963.90 and 79,167.40

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Solution

The fourth proportional to 134,540.20, 201,963.90 and 79,167.40 is: 118,841.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,540.20 : 201,963.90 = 79,167.40 : x
  2. Step 2: Convert to fraction form
    134,540.20/201,963.90 = 79,167.40/x
  3. Step 3: Cross multiply
    134,540.20x = 201,963.90 × 79,167.40
  4. Step 4: Simplify right side
    134,540.20x = 15,988,956,856.86
  5. Step 5: Solve for x
    x = 15,988,956,856.86/134,540.20
  6. Step 6: Final answer
    x = 118,841.48

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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.