Home / 191,635.20-287,328.24-91,792.80

Finding the Fourth Proportional to 191,635.20, 287,328.24 and 91,792.80

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Solution

The fourth proportional to 191,635.20, 287,328.24 and 91,792.80 is: 137,629.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,635.20 : 287,328.24 = 91,792.80 : x
  2. Step 2: Convert to fraction form
    191,635.20/287,328.24 = 91,792.80/x
  3. Step 3: Cross multiply
    191,635.20x = 287,328.24 × 91,792.80
  4. Step 4: Simplify right side
    191,635.20x = 26,374,663,668.67
  5. Step 5: Solve for x
    x = 26,374,663,668.67/191,635.20
  6. Step 6: Final answer
    x = 137,629.54

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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.