Home / 143,672.07-215,284.59-54,877.11

Finding the Fourth Proportional to 143,672.07, 215,284.59 and 54,877.11

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Solution

The fourth proportional to 143,672.07, 215,284.59 and 54,877.11 is: 82,230.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,672.07 : 215,284.59 = 54,877.11 : x
  2. Step 2: Convert to fraction form
    143,672.07/215,284.59 = 54,877.11/x
  3. Step 3: Cross multiply
    143,672.07x = 215,284.59 × 54,877.11
  4. Step 4: Simplify right side
    143,672.07x = 11,814,196,126.73
  5. Step 5: Solve for x
    x = 11,814,196,126.73/143,672.07
  6. Step 6: Final answer
    x = 82,230.29

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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.