Home / 158,166.35-218,273.09-86,546.35

Finding the Fourth Proportional to 158,166.35, 218,273.09 and 86,546.35

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Solution

The fourth proportional to 158,166.35, 218,273.09 and 86,546.35 is: 119,435.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,166.35 : 218,273.09 = 86,546.35 : x
  2. Step 2: Convert to fraction form
    158,166.35/218,273.09 = 86,546.35/x
  3. Step 3: Cross multiply
    158,166.35x = 218,273.09 × 86,546.35
  4. Step 4: Simplify right side
    158,166.35x = 18,890,739,242.72
  5. Step 5: Solve for x
    x = 18,890,739,242.72/158,166.35
  6. Step 6: Final answer
    x = 119,435.89

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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.