Home / 143,532.72-215,300.16-54,762.36

Finding the Fourth Proportional to 143,532.72, 215,300.16 and 54,762.36

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Solution

The fourth proportional to 143,532.72, 215,300.16 and 54,762.36 is: 82,143.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,532.72 : 215,300.16 = 54,762.36 : x
  2. Step 2: Convert to fraction form
    143,532.72/215,300.16 = 54,762.36/x
  3. Step 3: Cross multiply
    143,532.72x = 215,300.16 × 54,762.36
  4. Step 4: Simplify right side
    143,532.72x = 11,790,344,869.98
  5. Step 5: Solve for x
    x = 11,790,344,869.98/143,532.72
  6. Step 6: Final answer
    x = 82,143.95

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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.