Home / 143,647.26-215,438.49-54,869.10

Finding the Fourth Proportional to 143,647.26, 215,438.49 and 54,869.10

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Solution

The fourth proportional to 143,647.26, 215,438.49 and 54,869.10 is: 82,291.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,647.26 : 215,438.49 = 54,869.10 : x
  2. Step 2: Convert to fraction form
    143,647.26/215,438.49 = 54,869.10/x
  3. Step 3: Cross multiply
    143,647.26x = 215,438.49 × 54,869.10
  4. Step 4: Simplify right side
    143,647.26x = 11,820,916,051.66
  5. Step 5: Solve for x
    x = 11,820,916,051.66/143,647.26
  6. Step 6: Final answer
    x = 82,291.27

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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.