Home / 210,844.37-290,972.13-120,198.71

Finding the Fourth Proportional to 210,844.37, 290,972.13 and 120,198.71

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Solution

The fourth proportional to 210,844.37, 290,972.13 and 120,198.71 is: 165,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,844.37 : 290,972.13 = 120,198.71 : x
  2. Step 2: Convert to fraction form
    210,844.37/290,972.13 = 120,198.71/x
  3. Step 3: Cross multiply
    210,844.37x = 290,972.13 × 120,198.71
  4. Step 4: Simplify right side
    210,844.37x = 34,974,474,671.95
  5. Step 5: Solve for x
    x = 34,974,474,671.95/210,844.37
  6. Step 6: Final answer
    x = 165,878.15

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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.