Home / 191,249.68-286,612.07-121,003.24

Finding the Fourth Proportional to 191,249.68, 286,612.07 and 121,003.24

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Solution

The fourth proportional to 191,249.68, 286,612.07 and 121,003.24 is: 181,338.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,249.68 : 286,612.07 = 121,003.24 : x
  2. Step 2: Convert to fraction form
    191,249.68/286,612.07 = 121,003.24/x
  3. Step 3: Cross multiply
    191,249.68x = 286,612.07 × 121,003.24
  4. Step 4: Simplify right side
    191,249.68x = 34,680,987,660.05
  5. Step 5: Solve for x
    x = 34,680,987,660.05/191,249.68
  6. Step 6: Final answer
    x = 181,338.81

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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.