Home / 143,311.30-214,966.95-125,815.30

Finding the Fourth Proportional to 143,311.30, 214,966.95 and 125,815.30

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Solution

The fourth proportional to 143,311.30, 214,966.95 and 125,815.30 is: 188,722.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,311.30 : 214,966.95 = 125,815.30 : x
  2. Step 2: Convert to fraction form
    143,311.30/214,966.95 = 125,815.30/x
  3. Step 3: Cross multiply
    143,311.30x = 214,966.95 × 125,815.30
  4. Step 4: Simplify right side
    143,311.30x = 27,046,131,304.34
  5. Step 5: Solve for x
    x = 27,046,131,304.34/143,311.30
  6. Step 6: Final answer
    x = 188,722.95

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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.