Home / 261,118.35-391,718.03-111,359.07

Finding the Fourth Proportional to 261,118.35, 391,718.03 and 111,359.07

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Solution

The fourth proportional to 261,118.35, 391,718.03 and 111,359.07 is: 167,055.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,118.35 : 391,718.03 = 111,359.07 : x
  2. Step 2: Convert to fraction form
    261,118.35/391,718.03 = 111,359.07/x
  3. Step 3: Cross multiply
    261,118.35x = 391,718.03 × 111,359.07
  4. Step 4: Simplify right side
    261,118.35x = 43,621,354,966.24
  5. Step 5: Solve for x
    x = 43,621,354,966.24/261,118.35
  6. Step 6: Final answer
    x = 167,055.88

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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.