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Finding the Fourth Proportional to 166,189.61, 229,341.57 and 90,738.11

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Solution

The fourth proportional to 166,189.61, 229,341.57 and 90,738.11 is: 125,218.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,189.61 : 229,341.57 = 90,738.11 : x
  2. Step 2: Convert to fraction form
    166,189.61/229,341.57 = 90,738.11/x
  3. Step 3: Cross multiply
    166,189.61x = 229,341.57 × 90,738.11
  4. Step 4: Simplify right side
    166,189.61x = 20,810,020,606.23
  5. Step 5: Solve for x
    x = 20,810,020,606.23/166,189.61
  6. Step 6: Final answer
    x = 125,218.54

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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.