Home / 143,382.40-215,117.34-73,310.92

Finding the Fourth Proportional to 143,382.40, 215,117.34 and 73,310.92

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Solution

The fourth proportional to 143,382.40, 215,117.34 and 73,310.92 is: 109,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,382.40 : 215,117.34 = 73,310.92 : x
  2. Step 2: Convert to fraction form
    143,382.40/215,117.34 = 73,310.92/x
  3. Step 3: Cross multiply
    143,382.40x = 215,117.34 × 73,310.92
  4. Step 4: Simplify right side
    143,382.40x = 15,770,450,103.35
  5. Step 5: Solve for x
    x = 15,770,450,103.35/143,382.40
  6. Step 6: Final answer
    x = 109,988.74

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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.