Home / 191,584.83-287,377.07-90,359.26

Finding the Fourth Proportional to 191,584.83, 287,377.07 and 90,359.26

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Solution

The fourth proportional to 191,584.83, 287,377.07 and 90,359.26 is: 135,538.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,584.83 : 287,377.07 = 90,359.26 : x
  2. Step 2: Convert to fraction form
    191,584.83/287,377.07 = 90,359.26/x
  3. Step 3: Cross multiply
    191,584.83x = 287,377.07 × 90,359.26
  4. Step 4: Simplify right side
    191,584.83x = 25,967,179,832.43
  5. Step 5: Solve for x
    x = 25,967,179,832.43/191,584.83
  6. Step 6: Final answer
    x = 135,538.81

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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.