Home / 113,528.26-156,645.03-65,778.70

Finding the Fourth Proportional to 113,528.26, 156,645.03 and 65,778.70

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Solution

The fourth proportional to 113,528.26, 156,645.03 and 65,778.70 is: 90,760.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,528.26 : 156,645.03 = 65,778.70 : x
  2. Step 2: Convert to fraction form
    113,528.26/156,645.03 = 65,778.70/x
  3. Step 3: Cross multiply
    113,528.26x = 156,645.03 × 65,778.70
  4. Step 4: Simplify right side
    113,528.26x = 10,303,906,434.86
  5. Step 5: Solve for x
    x = 10,303,906,434.86/113,528.26
  6. Step 6: Final answer
    x = 90,760.72

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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.