Home / 98,191.71-135,614.93-66,305.25

Finding the Fourth Proportional to 98,191.71, 135,614.93 and 66,305.25

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Solution

The fourth proportional to 98,191.71, 135,614.93 and 66,305.25 is: 91,575.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,191.71 : 135,614.93 = 66,305.25 : x
  2. Step 2: Convert to fraction form
    98,191.71/135,614.93 = 66,305.25/x
  3. Step 3: Cross multiply
    98,191.71x = 135,614.93 × 66,305.25
  4. Step 4: Simplify right side
    98,191.71x = 8,991,981,505.86
  5. Step 5: Solve for x
    x = 8,991,981,505.86/98,191.71
  6. Step 6: Final answer
    x = 91,575.77

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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.