Home / 191,453.35-287,180.07-86,149.30

Finding the Fourth Proportional to 191,453.35, 287,180.07 and 86,149.30

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Solution

The fourth proportional to 191,453.35, 287,180.07 and 86,149.30 is: 129,223.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,453.35 : 287,180.07 = 86,149.30 : x
  2. Step 2: Convert to fraction form
    191,453.35/287,180.07 = 86,149.30/x
  3. Step 3: Cross multiply
    191,453.35x = 287,180.07 × 86,149.30
  4. Step 4: Simplify right side
    191,453.35x = 24,740,362,004.45
  5. Step 5: Solve for x
    x = 24,740,362,004.45/191,453.35
  6. Step 6: Final answer
    x = 129,223.97

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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.