Home / 158,166.19-218,269.33-86,546.21

Finding the Fourth Proportional to 158,166.19, 218,269.33 and 86,546.21

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Solution

The fourth proportional to 158,166.19, 218,269.33 and 86,546.21 is: 119,433.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,166.19 : 218,269.33 = 86,546.21 : x
  2. Step 2: Convert to fraction form
    158,166.19/218,269.33 = 86,546.21/x
  3. Step 3: Cross multiply
    158,166.19x = 218,269.33 × 86,546.21
  4. Step 4: Simplify right side
    158,166.19x = 18,890,382,179.39
  5. Step 5: Solve for x
    x = 18,890,382,179.39/158,166.19
  6. Step 6: Final answer
    x = 119,433.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.