Home / 99,189.45-148,754.97-54,159.12

Finding the Fourth Proportional to 99,189.45, 148,754.97 and 54,159.12

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Solution

The fourth proportional to 99,189.45, 148,754.97 and 54,159.12 is: 81,222.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,189.45 : 148,754.97 = 54,159.12 : x
  2. Step 2: Convert to fraction form
    99,189.45/148,754.97 = 54,159.12/x
  3. Step 3: Cross multiply
    99,189.45x = 148,754.97 × 54,159.12
  4. Step 4: Simplify right side
    99,189.45x = 8,056,438,270.83
  5. Step 5: Solve for x
    x = 8,056,438,270.83/99,189.45
  6. Step 6: Final answer
    x = 81,222.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.