Home / 142,532.70-213,712.65-71,372.58

Finding the Fourth Proportional to 142,532.70, 213,712.65 and 71,372.58

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Solution

The fourth proportional to 142,532.70, 213,712.65 and 71,372.58 is: 107,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,532.70 : 213,712.65 = 71,372.58 : x
  2. Step 2: Convert to fraction form
    142,532.70/213,712.65 = 71,372.58/x
  3. Step 3: Cross multiply
    142,532.70x = 213,712.65 × 71,372.58
  4. Step 4: Simplify right side
    142,532.70x = 15,253,223,209.14
  5. Step 5: Solve for x
    x = 15,253,223,209.14/142,532.70
  6. Step 6: Final answer
    x = 107,015.61

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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.