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Finding the Fourth Proportional to 134,761.78, 202,141.80 and 34,921.72

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Solution

The fourth proportional to 134,761.78, 202,141.80 and 34,921.72 is: 52,382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,761.78 : 202,141.80 = 34,921.72 : x
  2. Step 2: Convert to fraction form
    134,761.78/202,141.80 = 34,921.72/x
  3. Step 3: Cross multiply
    134,761.78x = 202,141.80 × 34,921.72
  4. Step 4: Simplify right side
    134,761.78x = 7,059,139,339.90
  5. Step 5: Solve for x
    x = 7,059,139,339.90/134,761.78
  6. Step 6: Final answer
    x = 52,382.35

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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.