Home / 143,932.73-215,899.16-77,404.19

Finding the Fourth Proportional to 143,932.73, 215,899.16 and 77,404.19

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Solution

The fourth proportional to 143,932.73, 215,899.16 and 77,404.19 is: 116,106.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,932.73 : 215,899.16 = 77,404.19 : x
  2. Step 2: Convert to fraction form
    143,932.73/215,899.16 = 77,404.19/x
  3. Step 3: Cross multiply
    143,932.73x = 215,899.16 × 77,404.19
  4. Step 4: Simplify right side
    143,932.73x = 16,711,498,134.96
  5. Step 5: Solve for x
    x = 16,711,498,134.96/143,932.73
  6. Step 6: Final answer
    x = 116,106.31

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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.