Home / 261,177.54-391,635.08-121,034.58

Finding the Fourth Proportional to 261,177.54, 391,635.08 and 121,034.58

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Solution

The fourth proportional to 261,177.54, 391,635.08 and 121,034.58 is: 181,491.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,177.54 : 391,635.08 = 121,034.58 : x
  2. Step 2: Convert to fraction form
    261,177.54/391,635.08 = 121,034.58/x
  3. Step 3: Cross multiply
    261,177.54x = 391,635.08 × 121,034.58
  4. Step 4: Simplify right side
    261,177.54x = 47,401,387,421.07
  5. Step 5: Solve for x
    x = 47,401,387,421.07/261,177.54
  6. Step 6: Final answer
    x = 181,491.06

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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.