Home / 191,806.20-287,709.30-173,143.80

Finding the Fourth Proportional to 191,806.20, 287,709.30 and 173,143.80

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Solution

The fourth proportional to 191,806.20, 287,709.30 and 173,143.80 is: 259,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,806.20 : 287,709.30 = 173,143.80 : x
  2. Step 2: Convert to fraction form
    191,806.20/287,709.30 = 173,143.80/x
  3. Step 3: Cross multiply
    191,806.20x = 287,709.30 × 173,143.80
  4. Step 4: Simplify right side
    191,806.20x = 49,815,081,497.34
  5. Step 5: Solve for x
    x = 49,815,081,497.34/191,806.20
  6. Step 6: Final answer
    x = 259,715.70

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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.