Home / 143,780.28-215,737.32-55,004.52

Finding the Fourth Proportional to 143,780.28, 215,737.32 and 55,004.52

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Solution

The fourth proportional to 143,780.28, 215,737.32 and 55,004.52 is: 82,532.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,780.28 : 215,737.32 = 55,004.52 : x
  2. Step 2: Convert to fraction form
    143,780.28/215,737.32 = 55,004.52/x
  3. Step 3: Cross multiply
    143,780.28x = 215,737.32 × 55,004.52
  4. Step 4: Simplify right side
    143,780.28x = 11,866,527,732.69
  5. Step 5: Solve for x
    x = 11,866,527,732.69/143,780.28
  6. Step 6: Final answer
    x = 82,532.37

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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.