Home / 115,799.28-159,791.72-64,808.97

Finding the Fourth Proportional to 115,799.28, 159,791.72 and 64,808.97

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Solution

The fourth proportional to 115,799.28, 159,791.72 and 64,808.97 is: 89,430.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,799.28 : 159,791.72 = 64,808.97 : x
  2. Step 2: Convert to fraction form
    115,799.28/159,791.72 = 64,808.97/x
  3. Step 3: Cross multiply
    115,799.28x = 159,791.72 × 64,808.97
  4. Step 4: Simplify right side
    115,799.28x = 10,355,936,463.68
  5. Step 5: Solve for x
    x = 10,355,936,463.68/115,799.28
  6. Step 6: Final answer
    x = 89,430.06

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1.5x scale

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.