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Finding the Fourth Proportional to 134,627.78, 185,778 and 74,195.06

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Solution

The fourth proportional to 134,627.78, 185,778 and 74,195.06 is: 102,384.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,627.78 : 185,778 = 74,195.06 : x
  2. Step 2: Convert to fraction form
    134,627.78/185,778 = 74,195.06/x
  3. Step 3: Cross multiply
    134,627.78x = 185,778 × 74,195.06
  4. Step 4: Simplify right side
    134,627.78x = 13,783,809,856.68
  5. Step 5: Solve for x
    x = 13,783,809,856.68/134,627.78
  6. Step 6: Final answer
    x = 102,384.59

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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.