Home / 143,867.66-198,454.95-90,059.26

Finding the Fourth Proportional to 143,867.66, 198,454.95 and 90,059.26

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Solution

The fourth proportional to 143,867.66, 198,454.95 and 90,059.26 is: 124,230.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,867.66 : 198,454.95 = 90,059.26 : x
  2. Step 2: Convert to fraction form
    143,867.66/198,454.95 = 90,059.26/x
  3. Step 3: Cross multiply
    143,867.66x = 198,454.95 × 90,059.26
  4. Step 4: Simplify right side
    143,867.66x = 17,872,705,850.68
  5. Step 5: Solve for x
    x = 17,872,705,850.68/143,867.66
  6. Step 6: Final answer
    x = 124,230.18

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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.