Home / 187,170.69-258,295.66-102,287.75

Finding the Fourth Proportional to 187,170.69, 258,295.66 and 102,287.75

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Solution

The fourth proportional to 187,170.69, 258,295.66 and 102,287.75 is: 141,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,170.69 : 258,295.66 = 102,287.75 : x
  2. Step 2: Convert to fraction form
    187,170.69/258,295.66 = 102,287.75/x
  3. Step 3: Cross multiply
    187,170.69x = 258,295.66 × 102,287.75
  4. Step 4: Simplify right side
    187,170.69x = 26,420,480,348.97
  5. Step 5: Solve for x
    x = 26,420,480,348.97/187,170.69
  6. Step 6: Final answer
    x = 141,157.15

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1.5x scale

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.