Home / 212,287.56-292,791-131,669.88

Finding the Fourth Proportional to 212,287.56, 292,791 and 131,669.88

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Solution

The fourth proportional to 212,287.56, 292,791 and 131,669.88 is: 181,601.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,287.56 : 292,791 = 131,669.88 : x
  2. Step 2: Convert to fraction form
    212,287.56/292,791 = 131,669.88/x
  3. Step 3: Cross multiply
    212,287.56x = 292,791 × 131,669.88
  4. Step 4: Simplify right side
    212,287.56x = 38,551,755,835.08
  5. Step 5: Solve for x
    x = 38,551,755,835.08/212,287.56
  6. Step 6: Final answer
    x = 181,601.58

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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.