Home / 89,965.59-134,220.97-80,998.08

Finding the Fourth Proportional to 89,965.59, 134,220.97 and 80,998.08

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Solution

The fourth proportional to 89,965.59, 134,220.97 and 80,998.08 is: 120,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,965.59 : 134,220.97 = 80,998.08 : x
  2. Step 2: Convert to fraction form
    89,965.59/134,220.97 = 80,998.08/x
  3. Step 3: Cross multiply
    89,965.59x = 134,220.97 × 80,998.08
  4. Step 4: Simplify right side
    89,965.59x = 10,871,640,663.24
  5. Step 5: Solve for x
    x = 10,871,640,663.24/89,965.59
  6. Step 6: Final answer
    x = 120,842.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.