Home / 191,199.15-286,540.38-72,805.92

Finding the Fourth Proportional to 191,199.15, 286,540.38 and 72,805.92

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Solution

The fourth proportional to 191,199.15, 286,540.38 and 72,805.92 is: 109,110.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,199.15 : 286,540.38 = 72,805.92 : x
  2. Step 2: Convert to fraction form
    191,199.15/286,540.38 = 72,805.92/x
  3. Step 3: Cross multiply
    191,199.15x = 286,540.38 × 72,805.92
  4. Step 4: Simplify right side
    191,199.15x = 20,861,835,983.05
  5. Step 5: Solve for x
    x = 20,861,835,983.05/191,199.15
  6. Step 6: Final answer
    x = 109,110.51

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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.