Home / 158,780.01-219,115.55-87,161.25

Finding the Fourth Proportional to 158,780.01, 219,115.55 and 87,161.25

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Solution

The fourth proportional to 158,780.01, 219,115.55 and 87,161.25 is: 120,282.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,780.01 : 219,115.55 = 87,161.25 : x
  2. Step 2: Convert to fraction form
    158,780.01/219,115.55 = 87,161.25/x
  3. Step 3: Cross multiply
    158,780.01x = 219,115.55 × 87,161.25
  4. Step 4: Simplify right side
    158,780.01x = 19,098,384,466.75
  5. Step 5: Solve for x
    x = 19,098,384,466.75/158,780.01
  6. Step 6: Final answer
    x = 120,282.05

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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.