Home / 100,776.23-139,067.00-54,836.06

Finding the Fourth Proportional to 100,776.23, 139,067.00 and 54,836.06

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Solution

The fourth proportional to 100,776.23, 139,067.00 and 54,836.06 is: 75,671.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,776.23 : 139,067.00 = 54,836.06 : x
  2. Step 2: Convert to fraction form
    100,776.23/139,067.00 = 54,836.06/x
  3. Step 3: Cross multiply
    100,776.23x = 139,067.00 × 54,836.06
  4. Step 4: Simplify right side
    100,776.23x = 7,625,885,592.14
  5. Step 5: Solve for x
    x = 7,625,885,592.14/100,776.23
  6. Step 6: Final answer
    x = 75,671.47

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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.