Home / 147,270.72-203,198.31-86,836.62

Finding the Fourth Proportional to 147,270.72, 203,198.31 and 86,836.62

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Solution

The fourth proportional to 147,270.72, 203,198.31 and 86,836.62 is: 119,813.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,270.72 : 203,198.31 = 86,836.62 : x
  2. Step 2: Convert to fraction form
    147,270.72/203,198.31 = 86,836.62/x
  3. Step 3: Cross multiply
    147,270.72x = 203,198.31 × 86,836.62
  4. Step 4: Simplify right side
    147,270.72x = 17,645,054,430.11
  5. Step 5: Solve for x
    x = 17,645,054,430.11/147,270.72
  6. Step 6: Final answer
    x = 119,813.73

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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.