Home / 187,324.92-280,985.85-80,784.21

Finding the Fourth Proportional to 187,324.92, 280,985.85 and 80,784.21

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Solution

The fourth proportional to 187,324.92, 280,985.85 and 80,784.21 is: 121,175.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,324.92 : 280,985.85 = 80,784.21 : x
  2. Step 2: Convert to fraction form
    187,324.92/280,985.85 = 80,784.21/x
  3. Step 3: Cross multiply
    187,324.92x = 280,985.85 × 80,784.21
  4. Step 4: Simplify right side
    187,324.92x = 22,699,219,913.43
  5. Step 5: Solve for x
    x = 22,699,219,913.43/187,324.92
  6. Step 6: Final answer
    x = 121,175.66

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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.