Home / 143,780.74-215,567.96-54,959.38

Finding the Fourth Proportional to 143,780.74, 215,567.96 and 54,959.38

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Solution

The fourth proportional to 143,780.74, 215,567.96 and 54,959.38 is: 82,399.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,780.74 : 215,567.96 = 54,959.38 : x
  2. Step 2: Convert to fraction form
    143,780.74/215,567.96 = 54,959.38/x
  3. Step 3: Cross multiply
    143,780.74x = 215,567.96 × 54,959.38
  4. Step 4: Simplify right side
    143,780.74x = 11,847,481,429.46
  5. Step 5: Solve for x
    x = 11,847,481,429.46/143,780.74
  6. Step 6: Final answer
    x = 82,399.64

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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.