Home / 261,139.14-391,735.98-111,395.25

Finding the Fourth Proportional to 261,139.14, 391,735.98 and 111,395.25

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Solution

The fourth proportional to 261,139.14, 391,735.98 and 111,395.25 is: 167,104.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,139.14 : 391,735.98 = 111,395.25 : x
  2. Step 2: Convert to fraction form
    261,139.14/391,735.98 = 111,395.25/x
  3. Step 3: Cross multiply
    261,139.14x = 391,735.98 × 111,395.25
  4. Step 4: Simplify right side
    261,139.14x = 43,637,527,426.10
  5. Step 5: Solve for x
    x = 43,637,527,426.10/261,139.14
  6. Step 6: Final answer
    x = 167,104.51

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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.