Home / 113,721.21-170,226.84-83,769.22

Finding the Fourth Proportional to 113,721.21, 170,226.84 and 83,769.22

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Solution

The fourth proportional to 113,721.21, 170,226.84 and 83,769.22 is: 125,392.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,721.21 : 170,226.84 = 83,769.22 : x
  2. Step 2: Convert to fraction form
    113,721.21/170,226.84 = 83,769.22/x
  3. Step 3: Cross multiply
    113,721.21x = 170,226.84 × 83,769.22
  4. Step 4: Simplify right side
    113,721.21x = 14,259,768,758.73
  5. Step 5: Solve for x
    x = 14,259,768,758.73/113,721.21
  6. Step 6: Final answer
    x = 125,392.34

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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.