Home / 191,965.20-287,947.80-178,843.20

Finding the Fourth Proportional to 191,965.20, 287,947.80 and 178,843.20

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Solution

The fourth proportional to 191,965.20, 287,947.80 and 178,843.20 is: 268,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,965.20 : 287,947.80 = 178,843.20 : x
  2. Step 2: Convert to fraction form
    191,965.20/287,947.80 = 178,843.20/x
  3. Step 3: Cross multiply
    191,965.20x = 287,947.80 × 178,843.20
  4. Step 4: Simplify right side
    191,965.20x = 51,497,505,984.96
  5. Step 5: Solve for x
    x = 51,497,505,984.96/191,965.20
  6. Step 6: Final answer
    x = 268,264.80

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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.