Home / 143,676.60-198,219.18-87,067.32

Finding the Fourth Proportional to 143,676.60, 198,219.18 and 87,067.32

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Solution

The fourth proportional to 143,676.60, 198,219.18 and 87,067.32 is: 120,119.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,676.60 : 198,219.18 = 87,067.32 : x
  2. Step 2: Convert to fraction form
    143,676.60/198,219.18 = 87,067.32/x
  3. Step 3: Cross multiply
    143,676.60x = 198,219.18 × 87,067.32
  4. Step 4: Simplify right side
    143,676.60x = 17,258,412,775.20
  5. Step 5: Solve for x
    x = 17,258,412,775.20/143,676.60
  6. Step 6: Final answer
    x = 120,119.86

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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.