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Finding the Fourth Proportional to 181,985.40, 272,978.10 and 63,668.70

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Solution

The fourth proportional to 181,985.40, 272,978.10 and 63,668.70 is: 95,503.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,985.40 : 272,978.10 = 63,668.70 : x
  2. Step 2: Convert to fraction form
    181,985.40/272,978.10 = 63,668.70/x
  3. Step 3: Cross multiply
    181,985.40x = 272,978.10 × 63,668.70
  4. Step 4: Simplify right side
    181,985.40x = 17,380,160,755.47
  5. Step 5: Solve for x
    x = 17,380,160,755.47/181,985.40
  6. Step 6: Final answer
    x = 95,503.05

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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.