Home / 187,085.02-280,738.25-68,839.40

Finding the Fourth Proportional to 187,085.02, 280,738.25 and 68,839.40

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Solution

The fourth proportional to 187,085.02, 280,738.25 and 68,839.40 is: 103,299.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,085.02 : 280,738.25 = 68,839.40 : x
  2. Step 2: Convert to fraction form
    187,085.02/280,738.25 = 68,839.40/x
  3. Step 3: Cross multiply
    187,085.02x = 280,738.25 × 68,839.40
  4. Step 4: Simplify right side
    187,085.02x = 19,325,852,687.05
  5. Step 5: Solve for x
    x = 19,325,852,687.05/187,085.02
  6. Step 6: Final answer
    x = 103,299.84

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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.