Home / 191,013.28-286,505.68-77,168.96

Finding the Fourth Proportional to 191,013.28, 286,505.68 and 77,168.96

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Solution

The fourth proportional to 191,013.28, 286,505.68 and 77,168.96 is: 115,747.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,013.28 : 286,505.68 = 77,168.96 : x
  2. Step 2: Convert to fraction form
    191,013.28/286,505.68 = 77,168.96/x
  3. Step 3: Cross multiply
    191,013.28x = 286,505.68 × 77,168.96
  4. Step 4: Simplify right side
    191,013.28x = 22,109,345,359.69
  5. Step 5: Solve for x
    x = 22,109,345,359.69/191,013.28
  6. Step 6: Final answer
    x = 115,747.69

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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.