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Finding the Fourth Proportional to 121,275.06, 181,932.03 and 51,164.70

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Solution

The fourth proportional to 121,275.06, 181,932.03 and 51,164.70 is: 76,755.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,275.06 : 181,932.03 = 51,164.70 : x
  2. Step 2: Convert to fraction form
    121,275.06/181,932.03 = 51,164.70/x
  3. Step 3: Cross multiply
    121,275.06x = 181,932.03 × 51,164.70
  4. Step 4: Simplify right side
    121,275.06x = 9,308,497,735.34
  5. Step 5: Solve for x
    x = 9,308,497,735.34/121,275.06
  6. Step 6: Final answer
    x = 76,755.25

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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.