Home / 210,822.67-290,951.07-120,180.79

Finding the Fourth Proportional to 210,822.67, 290,951.07 and 120,180.79

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Solution

The fourth proportional to 210,822.67, 290,951.07 and 120,180.79 is: 165,858.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,822.67 : 290,951.07 = 120,180.79 : x
  2. Step 2: Convert to fraction form
    210,822.67/290,951.07 = 120,180.79/x
  3. Step 3: Cross multiply
    210,822.67x = 290,951.07 × 120,180.79
  4. Step 4: Simplify right side
    210,822.67x = 34,966,729,443.95
  5. Step 5: Solve for x
    x = 34,966,729,443.95/210,822.67
  6. Step 6: Final answer
    x = 165,858.49

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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.