Home / 187,328.20-280,895.10-68,938.60

Finding the Fourth Proportional to 187,328.20, 280,895.10 and 68,938.60

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Solution

The fourth proportional to 187,328.20, 280,895.10 and 68,938.60 is: 103,372.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,328.20 : 280,895.10 = 68,938.60 : x
  2. Step 2: Convert to fraction form
    187,328.20/280,895.10 = 68,938.60/x
  3. Step 3: Cross multiply
    187,328.20x = 280,895.10 × 68,938.60
  4. Step 4: Simplify right side
    187,328.20x = 19,364,514,940.86
  5. Step 5: Solve for x
    x = 19,364,514,940.86/187,328.20
  6. Step 6: Final answer
    x = 103,372.13

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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.