Home / 113,161.48-156,170.46-65,426.92

Finding the Fourth Proportional to 113,161.48, 156,170.46 and 65,426.92

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Solution

The fourth proportional to 113,161.48, 156,170.46 and 65,426.92 is: 90,293.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,161.48 : 156,170.46 = 65,426.92 : x
  2. Step 2: Convert to fraction form
    113,161.48/156,170.46 = 65,426.92/x
  3. Step 3: Cross multiply
    113,161.48x = 156,170.46 × 65,426.92
  4. Step 4: Simplify right side
    113,161.48x = 10,217,752,192.78
  5. Step 5: Solve for x
    x = 10,217,752,192.78/113,161.48
  6. Step 6: Final answer
    x = 90,293.55

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1.5x scale

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.