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Finding the Fourth Proportional to 166,161, 229,303.14 and 90,710.28

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Solution

The fourth proportional to 166,161, 229,303.14 and 90,710.28 is: 125,180.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,161 : 229,303.14 = 90,710.28 : x
  2. Step 2: Convert to fraction form
    166,161/229,303.14 = 90,710.28/x
  3. Step 3: Cross multiply
    166,161x = 229,303.14 × 90,710.28
  4. Step 4: Simplify right side
    166,161x = 20,800,152,034.28
  5. Step 5: Solve for x
    x = 20,800,152,034.28/166,161
  6. Step 6: Final answer
    x = 125,180.71

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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.