Home / 143,899.29-215,880.07-55,152.85

Finding the Fourth Proportional to 143,899.29, 215,880.07 and 55,152.85

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Solution

The fourth proportional to 143,899.29, 215,880.07 and 55,152.85 is: 82,741.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,899.29 : 215,880.07 = 55,152.85 : x
  2. Step 2: Convert to fraction form
    143,899.29/215,880.07 = 55,152.85/x
  3. Step 3: Cross multiply
    143,899.29x = 215,880.07 × 55,152.85
  4. Step 4: Simplify right side
    143,899.29x = 11,906,401,118.70
  5. Step 5: Solve for x
    x = 11,906,401,118.70/143,899.29
  6. Step 6: Final answer
    x = 82,741.21

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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.