Home / 191,899.38-287,647.99-107,535.86

Finding the Fourth Proportional to 191,899.38, 287,647.99 and 107,535.86

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Solution

The fourth proportional to 191,899.38, 287,647.99 and 107,535.86 is: 161,191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,899.38 : 287,647.99 = 107,535.86 : x
  2. Step 2: Convert to fraction form
    191,899.38/287,647.99 = 107,535.86/x
  3. Step 3: Cross multiply
    191,899.38x = 287,647.99 × 107,535.86
  4. Step 4: Simplify right side
    191,899.38x = 30,932,473,981.92
  5. Step 5: Solve for x
    x = 30,932,473,981.92/191,899.38
  6. Step 6: Final answer
    x = 161,191.11

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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.