Home / 143,977.66-198,559.65-90,268.18

Finding the Fourth Proportional to 143,977.66, 198,559.65 and 90,268.18

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Solution

The fourth proportional to 143,977.66, 198,559.65 and 90,268.18 is: 124,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,977.66 : 198,559.65 = 90,268.18 : x
  2. Step 2: Convert to fraction form
    143,977.66/198,559.65 = 90,268.18/x
  3. Step 3: Cross multiply
    143,977.66x = 198,559.65 × 90,268.18
  4. Step 4: Simplify right side
    143,977.66x = 17,923,618,226.94
  5. Step 5: Solve for x
    x = 17,923,618,226.94/143,977.66
  6. Step 6: Final answer
    x = 124,488.88

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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.