Home / 141,513.55-195,285.51-81,119.80

Finding the Fourth Proportional to 141,513.55, 195,285.51 and 81,119.80

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Solution

The fourth proportional to 141,513.55, 195,285.51 and 81,119.80 is: 111,943.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,513.55 : 195,285.51 = 81,119.80 : x
  2. Step 2: Convert to fraction form
    141,513.55/195,285.51 = 81,119.80/x
  3. Step 3: Cross multiply
    141,513.55x = 195,285.51 × 81,119.80
  4. Step 4: Simplify right side
    141,513.55x = 15,841,521,514.10
  5. Step 5: Solve for x
    x = 15,841,521,514.10/141,513.55
  6. Step 6: Final answer
    x = 111,943.50

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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.