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Finding the Fourth Proportional to 166,780.20, 250,000.20 and 82,410.60

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Solution

The fourth proportional to 166,780.20, 250,000.20 and 82,410.60 is: 123,531.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,780.20 : 250,000.20 = 82,410.60 : x
  2. Step 2: Convert to fraction form
    166,780.20/250,000.20 = 82,410.60/x
  3. Step 3: Cross multiply
    166,780.20x = 250,000.20 × 82,410.60
  4. Step 4: Simplify right side
    166,780.20x = 20,602,666,482.12
  5. Step 5: Solve for x
    x = 20,602,666,482.12/166,780.20
  6. Step 6: Final answer
    x = 123,531.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.