Home / 113,210.62-156,221.19-62,220.71

Finding the Fourth Proportional to 113,210.62, 156,221.19 and 62,220.71

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Solution

The fourth proportional to 113,210.62, 156,221.19 and 62,220.71 is: 85,859.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,210.62 : 156,221.19 = 62,220.71 : x
  2. Step 2: Convert to fraction form
    113,210.62/156,221.19 = 62,220.71/x
  3. Step 3: Cross multiply
    113,210.62x = 156,221.19 × 62,220.71
  4. Step 4: Simplify right side
    113,210.62x = 9,720,193,749.40
  5. Step 5: Solve for x
    x = 9,720,193,749.40/113,210.62
  6. Step 6: Final answer
    x = 85,859.38

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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.