Home / 142,282.31-196,390.49-93,919.54

Finding the Fourth Proportional to 142,282.31, 196,390.49 and 93,919.54

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Solution

The fourth proportional to 142,282.31, 196,390.49 and 93,919.54 is: 129,635.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,282.31 : 196,390.49 = 93,919.54 : x
  2. Step 2: Convert to fraction form
    142,282.31/196,390.49 = 93,919.54/x
  3. Step 3: Cross multiply
    142,282.31x = 196,390.49 × 93,919.54
  4. Step 4: Simplify right side
    142,282.31x = 18,444,904,481.17
  5. Step 5: Solve for x
    x = 18,444,904,481.17/142,282.31
  6. Step 6: Final answer
    x = 129,635.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.