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Finding the Fourth Proportional to 159,905.74, 220,668.50 and 88,284.22

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Solution

The fourth proportional to 159,905.74, 220,668.50 and 88,284.22 is: 121,831.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,905.74 : 220,668.50 = 88,284.22 : x
  2. Step 2: Convert to fraction form
    159,905.74/220,668.50 = 88,284.22/x
  3. Step 3: Cross multiply
    159,905.74x = 220,668.50 × 88,284.22
  4. Step 4: Simplify right side
    159,905.74x = 19,481,546,401.07
  5. Step 5: Solve for x
    x = 19,481,546,401.07/159,905.74
  6. Step 6: Final answer
    x = 121,831.44

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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.