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Finding the Fourth Proportional to 172,734.30, 238,264.30 and 118,925.90

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Solution

The fourth proportional to 172,734.30, 238,264.30 and 118,925.90 is: 164,042.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,734.30 : 238,264.30 = 118,925.90 : x
  2. Step 2: Convert to fraction form
    172,734.30/238,264.30 = 118,925.90/x
  3. Step 3: Cross multiply
    172,734.30x = 238,264.30 × 118,925.90
  4. Step 4: Simplify right side
    172,734.30x = 28,335,794,826.73
  5. Step 5: Solve for x
    x = 28,335,794,826.73/172,734.30
  6. Step 6: Final answer
    x = 164,042.66

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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.