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Finding the Fourth Proportional to 134,654, 185,821.52 and 74,224.70

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Solution

The fourth proportional to 134,654, 185,821.52 and 74,224.70 is: 102,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,654 : 185,821.52 = 74,224.70 : x
  2. Step 2: Convert to fraction form
    134,654/185,821.52 = 74,224.70/x
  3. Step 3: Cross multiply
    134,654x = 185,821.52 × 74,224.70
  4. Step 4: Simplify right side
    134,654x = 13,792,546,575.54
  5. Step 5: Solve for x
    x = 13,792,546,575.54/134,654
  6. Step 6: Final answer
    x = 102,429.53

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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.