Home / 191,249.18-286,611.32-121,002.74

Finding the Fourth Proportional to 191,249.18, 286,611.32 and 121,002.74

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Solution

The fourth proportional to 191,249.18, 286,611.32 and 121,002.74 is: 181,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,249.18 : 286,611.32 = 121,002.74 : x
  2. Step 2: Convert to fraction form
    191,249.18/286,611.32 = 121,002.74/x
  3. Step 3: Cross multiply
    191,249.18x = 286,611.32 × 121,002.74
  4. Step 4: Simplify right side
    191,249.18x = 34,680,753,601.96
  5. Step 5: Solve for x
    x = 34,680,753,601.96/191,249.18
  6. Step 6: Final answer
    x = 181,338.06

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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.