Home / 143,895.48-215,720.13-55,212.63

Finding the Fourth Proportional to 143,895.48, 215,720.13 and 55,212.63

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Solution

The fourth proportional to 143,895.48, 215,720.13 and 55,212.63 is: 82,771.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,895.48 : 215,720.13 = 55,212.63 : x
  2. Step 2: Convert to fraction form
    143,895.48/215,720.13 = 55,212.63/x
  3. Step 3: Cross multiply
    143,895.48x = 215,720.13 × 55,212.63
  4. Step 4: Simplify right side
    143,895.48x = 11,910,475,721.24
  5. Step 5: Solve for x
    x = 11,910,475,721.24/143,895.48
  6. Step 6: Final answer
    x = 82,771.72

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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.