Home / 146,305.73-219,425.71-87,158.21

Finding the Fourth Proportional to 146,305.73, 219,425.71 and 87,158.21

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Solution

The fourth proportional to 146,305.73, 219,425.71 and 87,158.21 is: 130,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,305.73 : 219,425.71 = 87,158.21 : x
  2. Step 2: Convert to fraction form
    146,305.73/219,425.71 = 87,158.21/x
  3. Step 3: Cross multiply
    146,305.73x = 219,425.71 × 87,158.21
  4. Step 4: Simplify right side
    146,305.73x = 19,124,750,796.56
  5. Step 5: Solve for x
    x = 19,124,750,796.56/146,305.73
  6. Step 6: Final answer
    x = 130,717.72

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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.