Home / 261,120.68-391,703.82-74,132.18

Finding the Fourth Proportional to 261,120.68, 391,703.82 and 74,132.18

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Solution

The fourth proportional to 261,120.68, 391,703.82 and 74,132.18 is: 111,204.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,120.68 : 391,703.82 = 74,132.18 : x
  2. Step 2: Convert to fraction form
    261,120.68/391,703.82 = 74,132.18/x
  3. Step 3: Cross multiply
    261,120.68x = 391,703.82 × 74,132.18
  4. Step 4: Simplify right side
    261,120.68x = 29,037,858,090.93
  5. Step 5: Solve for x
    x = 29,037,858,090.93/261,120.68
  6. Step 6: Final answer
    x = 111,204.74

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1.5x scale

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.