Home / 143,870.76-198,667.01-90,247.95

Finding the Fourth Proportional to 143,870.76, 198,667.01 and 90,247.95

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Solution

The fourth proportional to 143,870.76, 198,667.01 and 90,247.95 is: 124,620.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,870.76 : 198,667.01 = 90,247.95 : x
  2. Step 2: Convert to fraction form
    143,870.76/198,667.01 = 90,247.95/x
  3. Step 3: Cross multiply
    143,870.76x = 198,667.01 × 90,247.95
  4. Step 4: Simplify right side
    143,870.76x = 17,929,290,610.75
  5. Step 5: Solve for x
    x = 17,929,290,610.75/143,870.76
  6. Step 6: Final answer
    x = 124,620.81

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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.