Home / 100,759.20-139,045.86-68,927.01

Finding the Fourth Proportional to 100,759.20, 139,045.86 and 68,927.01

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Solution

The fourth proportional to 100,759.20, 139,045.86 and 68,927.01 is: 95,118.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,759.20 : 139,045.86 = 68,927.01 : x
  2. Step 2: Convert to fraction form
    100,759.20/139,045.86 = 68,927.01/x
  3. Step 3: Cross multiply
    100,759.20x = 139,045.86 × 68,927.01
  4. Step 4: Simplify right side
    100,759.20x = 9,584,015,382.68
  5. Step 5: Solve for x
    x = 9,584,015,382.68/100,759.20
  6. Step 6: Final answer
    x = 95,118.02

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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.