Home / 142,208.46-213,429.33-72,107.82

Finding the Fourth Proportional to 142,208.46, 213,429.33 and 72,107.82

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Solution

The fourth proportional to 142,208.46, 213,429.33 and 72,107.82 is: 108,220.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,208.46 : 213,429.33 = 72,107.82 : x
  2. Step 2: Convert to fraction form
    142,208.46/213,429.33 = 72,107.82/x
  3. Step 3: Cross multiply
    142,208.46x = 213,429.33 × 72,107.82
  4. Step 4: Simplify right side
    142,208.46x = 15,389,923,710.36
  5. Step 5: Solve for x
    x = 15,389,923,710.36/142,208.46
  6. Step 6: Final answer
    x = 108,220.87

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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.