Home / 261,669.78-392,255.55-84,052.26

Finding the Fourth Proportional to 261,669.78, 392,255.55 and 84,052.26

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Solution

The fourth proportional to 261,669.78, 392,255.55 and 84,052.26 is: 125,998.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,669.78 : 392,255.55 = 84,052.26 : x
  2. Step 2: Convert to fraction form
    261,669.78/392,255.55 = 84,052.26/x
  3. Step 3: Cross multiply
    261,669.78x = 392,255.55 × 84,052.26
  4. Step 4: Simplify right side
    261,669.78x = 32,969,965,475.04
  5. Step 5: Solve for x
    x = 32,969,965,475.04/261,669.78
  6. Step 6: Final answer
    x = 125,998.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.