Home / 166,748-250,168.86-66,978.24

Finding the Fourth Proportional to 166,748, 250,168.86 and 66,978.24

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Solution

The fourth proportional to 166,748, 250,168.86 and 66,978.24 is: 100,486.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,748 : 250,168.86 = 66,978.24 : x
  2. Step 2: Convert to fraction form
    166,748/250,168.86 = 66,978.24/x
  3. Step 3: Cross multiply
    166,748x = 250,168.86 × 66,978.24
  4. Step 4: Simplify right side
    166,748x = 16,755,869,945.61
  5. Step 5: Solve for x
    x = 16,755,869,945.61/166,748
  6. Step 6: Final answer
    x = 100,486.18

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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.