Home / 261,070.26-391,632.72-111,326.37

Finding the Fourth Proportional to 261,070.26, 391,632.72 and 111,326.37

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Solution

The fourth proportional to 261,070.26, 391,632.72 and 111,326.37 is: 167,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,070.26 : 391,632.72 = 111,326.37 : x
  2. Step 2: Convert to fraction form
    261,070.26/391,632.72 = 111,326.37/x
  3. Step 3: Cross multiply
    261,070.26x = 391,632.72 × 111,326.37
  4. Step 4: Simplify right side
    261,070.26x = 43,599,049,090.83
  5. Step 5: Solve for x
    x = 43,599,049,090.83/261,070.26
  6. Step 6: Final answer
    x = 167,001.21

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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.