Home / 146,523.80-219,785.70-87,426.20

Finding the Fourth Proportional to 146,523.80, 219,785.70 and 87,426.20

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Solution

The fourth proportional to 146,523.80, 219,785.70 and 87,426.20 is: 131,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,523.80 : 219,785.70 = 87,426.20 : x
  2. Step 2: Convert to fraction form
    146,523.80/219,785.70 = 87,426.20/x
  3. Step 3: Cross multiply
    146,523.80x = 219,785.70 × 87,426.20
  4. Step 4: Simplify right side
    146,523.80x = 19,215,028,565.34
  5. Step 5: Solve for x
    x = 19,215,028,565.34/146,523.80
  6. Step 6: Final answer
    x = 131,139.30

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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.