Home / 115,195.56-158,990.22-91,503.06

Finding the Fourth Proportional to 115,195.56, 158,990.22 and 91,503.06

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Solution

The fourth proportional to 115,195.56, 158,990.22 and 91,503.06 is: 126,290.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,195.56 : 158,990.22 = 91,503.06 : x
  2. Step 2: Convert to fraction form
    115,195.56/158,990.22 = 91,503.06/x
  3. Step 3: Cross multiply
    115,195.56x = 158,990.22 × 91,503.06
  4. Step 4: Simplify right side
    115,195.56x = 14,548,091,640.07
  5. Step 5: Solve for x
    x = 14,548,091,640.07/115,195.56
  6. Step 6: Final answer
    x = 126,290.39

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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.