Home / 148,785.88-205,360.28-85,160.60

Finding the Fourth Proportional to 148,785.88, 205,360.28 and 85,160.60

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Solution

The fourth proportional to 148,785.88, 205,360.28 and 85,160.60 is: 117,542.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,785.88 : 205,360.28 = 85,160.60 : x
  2. Step 2: Convert to fraction form
    148,785.88/205,360.28 = 85,160.60/x
  3. Step 3: Cross multiply
    148,785.88x = 205,360.28 × 85,160.60
  4. Step 4: Simplify right side
    148,785.88x = 17,488,604,660.97
  5. Step 5: Solve for x
    x = 17,488,604,660.97/148,785.88
  6. Step 6: Final answer
    x = 117,542.10

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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.