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Finding the Fourth Proportional to 166,571.60, 229,868.09 and 90,090.77

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Solution

The fourth proportional to 166,571.60, 229,868.09 and 90,090.77 is: 124,324.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,571.60 : 229,868.09 = 90,090.77 : x
  2. Step 2: Convert to fraction form
    166,571.60/229,868.09 = 90,090.77/x
  3. Step 3: Cross multiply
    166,571.60x = 229,868.09 × 90,090.77
  4. Step 4: Simplify right side
    166,571.60x = 20,708,993,061.02
  5. Step 5: Solve for x
    x = 20,708,993,061.02/166,571.60
  6. Step 6: Final answer
    x = 124,324.87

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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.