Home / 113,542.11-156,680.55-65,786.94

Finding the Fourth Proportional to 113,542.11, 156,680.55 and 65,786.94

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Solution

The fourth proportional to 113,542.11, 156,680.55 and 65,786.94 is: 90,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,542.11 : 156,680.55 = 65,786.94 : x
  2. Step 2: Convert to fraction form
    113,542.11/156,680.55 = 65,786.94/x
  3. Step 3: Cross multiply
    113,542.11x = 156,680.55 × 65,786.94
  4. Step 4: Simplify right side
    113,542.11x = 10,307,533,942.02
  5. Step 5: Solve for x
    x = 10,307,533,942.02/113,542.11
  6. Step 6: Final answer
    x = 90,781.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.