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Finding the Fourth Proportional to 166,382.65, 229,608.12 and 90,931.15

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Solution

The fourth proportional to 166,382.65, 229,608.12 and 90,931.15 is: 125,485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,382.65 : 229,608.12 = 90,931.15 : x
  2. Step 2: Convert to fraction form
    166,382.65/229,608.12 = 90,931.15/x
  3. Step 3: Cross multiply
    166,382.65x = 229,608.12 × 90,931.15
  4. Step 4: Simplify right side
    166,382.65x = 20,878,530,167.91
  5. Step 5: Solve for x
    x = 20,878,530,167.91/166,382.65
  6. Step 6: Final answer
    x = 125,485.02

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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.