Home / 172,512.90-258,769.35-164,985.30

Finding the Fourth Proportional to 172,512.90, 258,769.35 and 164,985.30

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Solution

The fourth proportional to 172,512.90, 258,769.35 and 164,985.30 is: 247,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,512.90 : 258,769.35 = 164,985.30 : x
  2. Step 2: Convert to fraction form
    172,512.90/258,769.35 = 164,985.30/x
  3. Step 3: Cross multiply
    172,512.90x = 258,769.35 × 164,985.30
  4. Step 4: Simplify right side
    172,512.90x = 42,693,138,840.56
  5. Step 5: Solve for x
    x = 42,693,138,840.56/172,512.90
  6. Step 6: Final answer
    x = 247,477.95

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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.