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Finding the Fourth Proportional to 166,776.70, 230,151.89 and 90,295.78

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Solution

The fourth proportional to 166,776.70, 230,151.89 and 90,295.78 is: 124,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,776.70 : 230,151.89 = 90,295.78 : x
  2. Step 2: Convert to fraction form
    166,776.70/230,151.89 = 90,295.78/x
  3. Step 3: Cross multiply
    166,776.70x = 230,151.89 × 90,295.78
  4. Step 4: Simplify right side
    166,776.70x = 20,781,744,426.02
  5. Step 5: Solve for x
    x = 20,781,744,426.02/166,776.70
  6. Step 6: Final answer
    x = 124,608.20

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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.