Home / 143,623.80-215,435.70-131,182.20

Finding the Fourth Proportional to 143,623.80, 215,435.70 and 131,182.20

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Solution

The fourth proportional to 143,623.80, 215,435.70 and 131,182.20 is: 196,773.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,623.80 : 215,435.70 = 131,182.20 : x
  2. Step 2: Convert to fraction form
    143,623.80/215,435.70 = 131,182.20/x
  3. Step 3: Cross multiply
    143,623.80x = 215,435.70 × 131,182.20
  4. Step 4: Simplify right side
    143,623.80x = 28,261,329,084.54
  5. Step 5: Solve for x
    x = 28,261,329,084.54/143,623.80
  6. Step 6: Final answer
    x = 196,773.30

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1.5x scale

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.