Home / 141,640.69-195,497.40-81,210.25

Finding the Fourth Proportional to 141,640.69, 195,497.40 and 81,210.25

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Solution

The fourth proportional to 141,640.69, 195,497.40 and 81,210.25 is: 112,089.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,640.69 : 195,497.40 = 81,210.25 : x
  2. Step 2: Convert to fraction form
    141,640.69/195,497.40 = 81,210.25/x
  3. Step 3: Cross multiply
    141,640.69x = 195,497.40 × 81,210.25
  4. Step 4: Simplify right side
    141,640.69x = 15,876,392,728.35
  5. Step 5: Solve for x
    x = 15,876,392,728.35/141,640.69
  6. Step 6: Final answer
    x = 112,089.21

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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.