Home / 261,146.22-391,747.47-111,402.33

Finding the Fourth Proportional to 261,146.22, 391,747.47 and 111,402.33

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Solution

The fourth proportional to 261,146.22, 391,747.47 and 111,402.33 is: 167,115.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,146.22 : 391,747.47 = 111,402.33 : x
  2. Step 2: Convert to fraction form
    261,146.22/391,747.47 = 111,402.33/x
  3. Step 3: Cross multiply
    261,146.22x = 391,747.47 × 111,402.33
  4. Step 4: Simplify right side
    261,146.22x = 43,641,580,929.61
  5. Step 5: Solve for x
    x = 43,641,580,929.61/261,146.22
  6. Step 6: Final answer
    x = 167,115.50

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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.