Home / 115,527.67-159,429.26-67,781.81

Finding the Fourth Proportional to 115,527.67, 159,429.26 and 67,781.81

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Solution

The fourth proportional to 115,527.67, 159,429.26 and 67,781.81 is: 93,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,527.67 : 159,429.26 = 67,781.81 : x
  2. Step 2: Convert to fraction form
    115,527.67/159,429.26 = 67,781.81/x
  3. Step 3: Cross multiply
    115,527.67x = 159,429.26 × 67,781.81
  4. Step 4: Simplify right side
    115,527.67x = 10,806,404,377.79
  5. Step 5: Solve for x
    x = 10,806,404,377.79/115,527.67
  6. Step 6: Final answer
    x = 93,539.54

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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.