Home / 113,392.19-170,143.61-71,292.06

Finding the Fourth Proportional to 113,392.19, 170,143.61 and 71,292.06

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Solution

The fourth proportional to 113,392.19, 170,143.61 and 71,292.06 is: 106,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,392.19 : 170,143.61 = 71,292.06 : x
  2. Step 2: Convert to fraction form
    113,392.19/170,143.61 = 71,292.06/x
  3. Step 3: Cross multiply
    113,392.19x = 170,143.61 × 71,292.06
  4. Step 4: Simplify right side
    113,392.19x = 12,129,888,452.74
  5. Step 5: Solve for x
    x = 12,129,888,452.74/113,392.19
  6. Step 6: Final answer
    x = 106,972.87

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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.