Home / 109,299.06-163,693.38-84,139.44

Finding the Fourth Proportional to 109,299.06, 163,693.38 and 84,139.44

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Solution

The fourth proportional to 109,299.06, 163,693.38 and 84,139.44 is: 126,012.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,299.06 : 163,693.38 = 84,139.44 : x
  2. Step 2: Convert to fraction form
    109,299.06/163,693.38 = 84,139.44/x
  3. Step 3: Cross multiply
    109,299.06x = 163,693.38 × 84,139.44
  4. Step 4: Simplify right side
    109,299.06x = 13,773,069,324.91
  5. Step 5: Solve for x
    x = 13,773,069,324.91/109,299.06
  6. Step 6: Final answer
    x = 126,012.70

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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.