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Finding the Fourth Proportional to 172,787.04, 258,698.88 and 88,365.60

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Solution

The fourth proportional to 172,787.04, 258,698.88 and 88,365.60 is: 132,302.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,787.04 : 258,698.88 = 88,365.60 : x
  2. Step 2: Convert to fraction form
    172,787.04/258,698.88 = 88,365.60/x
  3. Step 3: Cross multiply
    172,787.04x = 258,698.88 × 88,365.60
  4. Step 4: Simplify right side
    172,787.04x = 22,860,081,750.53
  5. Step 5: Solve for x
    x = 22,860,081,750.53/172,787.04
  6. Step 6: Final answer
    x = 132,302.06

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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.