Home / 191,610.20-287,415.30-172,947.80

Finding the Fourth Proportional to 191,610.20, 287,415.30 and 172,947.80

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Solution

The fourth proportional to 191,610.20, 287,415.30 and 172,947.80 is: 259,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,610.20 : 287,415.30 = 172,947.80 : x
  2. Step 2: Convert to fraction form
    191,610.20/287,415.30 = 172,947.80/x
  3. Step 3: Cross multiply
    191,610.20x = 287,415.30 × 172,947.80
  4. Step 4: Simplify right side
    191,610.20x = 49,707,843,821.34
  5. Step 5: Solve for x
    x = 49,707,843,821.34/191,610.20
  6. Step 6: Final answer
    x = 259,421.70

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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.