Home / 115,964.88-160,039.17-64,974.84

Finding the Fourth Proportional to 115,964.88, 160,039.17 and 64,974.84

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Solution

The fourth proportional to 115,964.88, 160,039.17 and 64,974.84 is: 89,669.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,964.88 : 160,039.17 = 64,974.84 : x
  2. Step 2: Convert to fraction form
    115,964.88/160,039.17 = 64,974.84/x
  3. Step 3: Cross multiply
    115,964.88x = 160,039.17 × 64,974.84
  4. Step 4: Simplify right side
    115,964.88x = 10,398,519,464.48
  5. Step 5: Solve for x
    x = 10,398,519,464.48/115,964.88
  6. Step 6: Final answer
    x = 89,669.56

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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.