Home / 99,190.71-148,531.73-54,768.15

Finding the Fourth Proportional to 99,190.71, 148,531.73 and 54,768.15

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Solution

The fourth proportional to 99,190.71, 148,531.73 and 54,768.15 is: 82,011.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,190.71 : 148,531.73 = 54,768.15 : x
  2. Step 2: Convert to fraction form
    99,190.71/148,531.73 = 54,768.15/x
  3. Step 3: Cross multiply
    99,190.71x = 148,531.73 × 54,768.15
  4. Step 4: Simplify right side
    99,190.71x = 8,134,807,794.56
  5. Step 5: Solve for x
    x = 8,134,807,794.56/99,190.71
  6. Step 6: Final answer
    x = 82,011.79

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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.