Home / 159,021.06-219,418.65-108,701.70

Finding the Fourth Proportional to 159,021.06, 219,418.65 and 108,701.70

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Solution

The fourth proportional to 159,021.06, 219,418.65 and 108,701.70 is: 149,987.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,021.06 : 219,418.65 = 108,701.70 : x
  2. Step 2: Convert to fraction form
    159,021.06/219,418.65 = 108,701.70/x
  3. Step 3: Cross multiply
    159,021.06x = 219,418.65 × 108,701.70
  4. Step 4: Simplify right side
    159,021.06x = 23,851,180,266.71
  5. Step 5: Solve for x
    x = 23,851,180,266.71/159,021.06
  6. Step 6: Final answer
    x = 149,987.56

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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.