Home / 141,639.69-195,496.02-81,209.24

Finding the Fourth Proportional to 141,639.69, 195,496.02 and 81,209.24

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Solution

The fourth proportional to 141,639.69, 195,496.02 and 81,209.24 is: 112,087.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,639.69 : 195,496.02 = 81,209.24 : x
  2. Step 2: Convert to fraction form
    141,639.69/195,496.02 = 81,209.24/x
  3. Step 3: Cross multiply
    141,639.69x = 195,496.02 × 81,209.24
  4. Step 4: Simplify right side
    141,639.69x = 15,876,082,229.74
  5. Step 5: Solve for x
    x = 15,876,082,229.74/141,639.69
  6. Step 6: Final answer
    x = 112,087.81

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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.