Home / 191,921.60-287,857.20-58,815.20

Finding the Fourth Proportional to 191,921.60, 287,857.20 and 58,815.20

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Solution

The fourth proportional to 191,921.60, 287,857.20 and 58,815.20 is: 88,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,921.60 : 287,857.20 = 58,815.20 : x
  2. Step 2: Convert to fraction form
    191,921.60/287,857.20 = 58,815.20/x
  3. Step 3: Cross multiply
    191,921.60x = 287,857.20 × 58,815.20
  4. Step 4: Simplify right side
    191,921.60x = 16,930,378,789.44
  5. Step 5: Solve for x
    x = 16,930,378,789.44/191,921.60
  6. Step 6: Final answer
    x = 88,215.08

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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.