Home / 141,513.69-195,290.51-81,083.10

Finding the Fourth Proportional to 141,513.69, 195,290.51 and 81,083.10

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Solution

The fourth proportional to 141,513.69, 195,290.51 and 81,083.10 is: 111,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,513.69 : 195,290.51 = 81,083.10 : x
  2. Step 2: Convert to fraction form
    141,513.69/195,290.51 = 81,083.10/x
  3. Step 3: Cross multiply
    141,513.69x = 195,290.51 × 81,083.10
  4. Step 4: Simplify right side
    141,513.69x = 15,834,759,545.97
  5. Step 5: Solve for x
    x = 15,834,759,545.97/141,513.69
  6. Step 6: Final answer
    x = 111,895.60

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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.