Home / 141,939.26-195,879-91,725.74

Finding the Fourth Proportional to 141,939.26, 195,879 and 91,725.74

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Solution

The fourth proportional to 141,939.26, 195,879 and 91,725.74 is: 126,583.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,939.26 : 195,879 = 91,725.74 : x
  2. Step 2: Convert to fraction form
    141,939.26/195,879 = 91,725.74/x
  3. Step 3: Cross multiply
    141,939.26x = 195,879 × 91,725.74
  4. Step 4: Simplify right side
    141,939.26x = 17,967,146,225.46
  5. Step 5: Solve for x
    x = 17,967,146,225.46/141,939.26
  6. Step 6: Final answer
    x = 126,583.34

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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.