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Finding the Fourth Proportional to 166,711.62, 230,062.32 and 90,230.76

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Solution

The fourth proportional to 166,711.62, 230,062.32 and 90,230.76 is: 124,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,711.62 : 230,062.32 = 90,230.76 : x
  2. Step 2: Convert to fraction form
    166,711.62/230,062.32 = 90,230.76/x
  3. Step 3: Cross multiply
    166,711.62x = 230,062.32 × 90,230.76
  4. Step 4: Simplify right side
    166,711.62x = 20,758,697,980.96
  5. Step 5: Solve for x
    x = 20,758,697,980.96/166,711.62
  6. Step 6: Final answer
    x = 124,518.60

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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.