Home / 111,727.42-154,139.97-63,955.06

Finding the Fourth Proportional to 111,727.42, 154,139.97 and 63,955.06

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Solution

The fourth proportional to 111,727.42, 154,139.97 and 63,955.06 is: 88,232.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,727.42 : 154,139.97 = 63,955.06 : x
  2. Step 2: Convert to fraction form
    111,727.42/154,139.97 = 63,955.06/x
  3. Step 3: Cross multiply
    111,727.42x = 154,139.97 × 63,955.06
  4. Step 4: Simplify right side
    111,727.42x = 9,858,031,029.75
  5. Step 5: Solve for x
    x = 9,858,031,029.75/111,727.42
  6. Step 6: Final answer
    x = 88,232.87

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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.