Home / 148,199.76-204,515.66-81,131.76

Finding the Fourth Proportional to 148,199.76, 204,515.66 and 81,131.76

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Solution

The fourth proportional to 148,199.76, 204,515.66 and 81,131.76 is: 111,961.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,199.76 : 204,515.66 = 81,131.76 : x
  2. Step 2: Convert to fraction form
    148,199.76/204,515.66 = 81,131.76/x
  3. Step 3: Cross multiply
    148,199.76x = 204,515.66 × 81,131.76
  4. Step 4: Simplify right side
    148,199.76x = 16,592,715,443.36
  5. Step 5: Solve for x
    x = 16,592,715,443.36/148,199.76
  6. Step 6: Final answer
    x = 111,961.82

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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.