Home / 191,966.20-287,949.30-169,415.80

Finding the Fourth Proportional to 191,966.20, 287,949.30 and 169,415.80

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Solution

The fourth proportional to 191,966.20, 287,949.30 and 169,415.80 is: 254,123.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,966.20 : 287,949.30 = 169,415.80 : x
  2. Step 2: Convert to fraction form
    191,966.20/287,949.30 = 169,415.80/x
  3. Step 3: Cross multiply
    191,966.20x = 287,949.30 × 169,415.80
  4. Step 4: Simplify right side
    191,966.20x = 48,783,161,018.94
  5. Step 5: Solve for x
    x = 48,783,161,018.94/191,966.20
  6. Step 6: Final answer
    x = 254,123.70

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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.