Home / 187,142.25-258,242.33-114,515.47

Finding the Fourth Proportional to 187,142.25, 258,242.33 and 114,515.47

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Solution

The fourth proportional to 187,142.25, 258,242.33 and 114,515.47 is: 158,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,142.25 : 258,242.33 = 114,515.47 : x
  2. Step 2: Convert to fraction form
    187,142.25/258,242.33 = 114,515.47/x
  3. Step 3: Cross multiply
    187,142.25x = 258,242.33 × 114,515.47
  4. Step 4: Simplify right side
    187,142.25x = 29,572,741,758.79
  5. Step 5: Solve for x
    x = 29,572,741,758.79/187,142.25
  6. Step 6: Final answer
    x = 158,022.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.