Home / 143,264.85-214,601.96-83,920.61

Finding the Fourth Proportional to 143,264.85, 214,601.96 and 83,920.61

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Solution

The fourth proportional to 143,264.85, 214,601.96 and 83,920.61 is: 125,707.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,264.85 : 214,601.96 = 83,920.61 : x
  2. Step 2: Convert to fraction form
    143,264.85/214,601.96 = 83,920.61/x
  3. Step 3: Cross multiply
    143,264.85x = 214,601.96 × 83,920.61
  4. Step 4: Simplify right side
    143,264.85x = 18,009,525,897.78
  5. Step 5: Solve for x
    x = 18,009,525,897.78/143,264.85
  6. Step 6: Final answer
    x = 125,707.92

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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.