Home / 113,740.39-170,472.22-80,470.05

Finding the Fourth Proportional to 113,740.39, 170,472.22 and 80,470.05

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Solution

The fourth proportional to 113,740.39, 170,472.22 and 80,470.05 is: 120,607.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,740.39 : 170,472.22 = 80,470.05 : x
  2. Step 2: Convert to fraction form
    113,740.39/170,472.22 = 80,470.05/x
  3. Step 3: Cross multiply
    113,740.39x = 170,472.22 × 80,470.05
  4. Step 4: Simplify right side
    113,740.39x = 13,717,908,067.01
  5. Step 5: Solve for x
    x = 13,717,908,067.01/113,740.39
  6. Step 6: Final answer
    x = 120,607.18

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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.