Home / 198,555.06-297,854.37-86,158.02

Finding the Fourth Proportional to 198,555.06, 297,854.37 and 86,158.02

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Solution

The fourth proportional to 198,555.06, 297,854.37 and 86,158.02 is: 129,246.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,555.06 : 297,854.37 = 86,158.02 : x
  2. Step 2: Convert to fraction form
    198,555.06/297,854.37 = 86,158.02/x
  3. Step 3: Cross multiply
    198,555.06x = 297,854.37 × 86,158.02
  4. Step 4: Simplify right side
    198,555.06x = 25,662,542,767.55
  5. Step 5: Solve for x
    x = 25,662,542,767.55/198,555.06
  6. Step 6: Final answer
    x = 129,246.48

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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.