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Finding the Fourth Proportional to 166,287.22, 229,467.81 and 90,821.14

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Solution

The fourth proportional to 166,287.22, 229,467.81 and 90,821.14 is: 125,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,287.22 : 229,467.81 = 90,821.14 : x
  2. Step 2: Convert to fraction form
    166,287.22/229,467.81 = 90,821.14/x
  3. Step 3: Cross multiply
    166,287.22x = 229,467.81 × 90,821.14
  4. Step 4: Simplify right side
    166,287.22x = 20,840,528,097.50
  5. Step 5: Solve for x
    x = 20,840,528,097.50/166,287.22
  6. Step 6: Final answer
    x = 125,328.50

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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.