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Finding the Fourth Proportional to 166,793.64, 230,174.86 and 90,312.81

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Solution

The fourth proportional to 166,793.64, 230,174.86 and 90,312.81 is: 124,631.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,793.64 : 230,174.86 = 90,312.81 : x
  2. Step 2: Convert to fraction form
    166,793.64/230,174.86 = 90,312.81/x
  3. Step 3: Cross multiply
    166,793.64x = 230,174.86 × 90,312.81
  4. Step 4: Simplify right side
    166,793.64x = 20,787,738,397.96
  5. Step 5: Solve for x
    x = 20,787,738,397.96/166,793.64
  6. Step 6: Final answer
    x = 124,631.48

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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.