Home / 141,513.77-195,316.92-81,124.97

Finding the Fourth Proportional to 141,513.77, 195,316.92 and 81,124.97

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Solution

The fourth proportional to 141,513.77, 195,316.92 and 81,124.97 is: 111,968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,513.77 : 195,316.92 = 81,124.97 : x
  2. Step 2: Convert to fraction form
    141,513.77/195,316.92 = 81,124.97/x
  3. Step 3: Cross multiply
    141,513.77x = 195,316.92 × 81,124.97
  4. Step 4: Simplify right side
    141,513.77x = 15,845,078,298.91
  5. Step 5: Solve for x
    x = 15,845,078,298.91/141,513.77
  6. Step 6: Final answer
    x = 111,968.45

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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.