Home / 132,318.81-198,448.31-61,202.43

Finding the Fourth Proportional to 132,318.81, 198,448.31 and 61,202.43

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Solution

The fourth proportional to 132,318.81, 198,448.31 and 61,202.43 is: 91,789.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,318.81 : 198,448.31 = 61,202.43 : x
  2. Step 2: Convert to fraction form
    132,318.81/198,448.31 = 61,202.43/x
  3. Step 3: Cross multiply
    132,318.81x = 198,448.31 × 61,202.43
  4. Step 4: Simplify right side
    132,318.81x = 12,145,518,495.38
  5. Step 5: Solve for x
    x = 12,145,518,495.38/132,318.81
  6. Step 6: Final answer
    x = 91,789.81

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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.