Home / 191,865.20-287,819.40-58,744.40

Finding the Fourth Proportional to 191,865.20, 287,819.40 and 58,744.40

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Solution

The fourth proportional to 191,865.20, 287,819.40 and 58,744.40 is: 88,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,865.20 : 287,819.40 = 58,744.40 : x
  2. Step 2: Convert to fraction form
    191,865.20/287,819.40 = 58,744.40/x
  3. Step 3: Cross multiply
    191,865.20x = 287,819.40 × 58,744.40
  4. Step 4: Simplify right side
    191,865.20x = 16,907,777,961.36
  5. Step 5: Solve for x
    x = 16,907,777,961.36/191,865.20
  6. Step 6: Final answer
    x = 88,123.21

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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.