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Finding the Fourth Proportional to 159,803.01, 220,540.60 and 91,843.69

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Solution

The fourth proportional to 159,803.01, 220,540.60 and 91,843.69 is: 126,751.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,803.01 : 220,540.60 = 91,843.69 : x
  2. Step 2: Convert to fraction form
    159,803.01/220,540.60 = 91,843.69/x
  3. Step 3: Cross multiply
    159,803.01x = 220,540.60 × 91,843.69
  4. Step 4: Simplify right side
    159,803.01x = 20,255,262,498.81
  5. Step 5: Solve for x
    x = 20,255,262,498.81/159,803.01
  6. Step 6: Final answer
    x = 126,751.45

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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.