Home / 145,514.06-200,836.96-91,091.56

Finding the Fourth Proportional to 145,514.06, 200,836.96 and 91,091.56

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Solution

The fourth proportional to 145,514.06, 200,836.96 and 91,091.56 is: 125,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,514.06 : 200,836.96 = 91,091.56 : x
  2. Step 2: Convert to fraction form
    145,514.06/200,836.96 = 91,091.56/x
  3. Step 3: Cross multiply
    145,514.06x = 200,836.96 × 91,091.56
  4. Step 4: Simplify right side
    145,514.06x = 18,294,551,992.06
  5. Step 5: Solve for x
    x = 18,294,551,992.06/145,514.06
  6. Step 6: Final answer
    x = 125,723.60

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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.