Home / 115,773.47-159,771.78-67,371.51

Finding the Fourth Proportional to 115,773.47, 159,771.78 and 67,371.51

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Solution

The fourth proportional to 115,773.47, 159,771.78 and 67,371.51 is: 92,975.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,773.47 : 159,771.78 = 67,371.51 : x
  2. Step 2: Convert to fraction form
    115,773.47/159,771.78 = 67,371.51/x
  3. Step 3: Cross multiply
    115,773.47x = 159,771.78 × 67,371.51
  4. Step 4: Simplify right side
    115,773.47x = 10,764,066,073.99
  5. Step 5: Solve for x
    x = 10,764,066,073.99/115,773.47
  6. Step 6: Final answer
    x = 92,975.24

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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.