Home / 109,871.30-164,612.55-102,872.90

Finding the Fourth Proportional to 109,871.30, 164,612.55 and 102,872.90

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Solution

The fourth proportional to 109,871.30, 164,612.55 and 102,872.90 is: 154,127.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,871.30 : 164,612.55 = 102,872.90 : x
  2. Step 2: Convert to fraction form
    109,871.30/164,612.55 = 102,872.90/x
  3. Step 3: Cross multiply
    109,871.30x = 164,612.55 × 102,872.90
  4. Step 4: Simplify right side
    109,871.30x = 16,934,170,394.90
  5. Step 5: Solve for x
    x = 16,934,170,394.90/109,871.30
  6. Step 6: Final answer
    x = 154,127.33

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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.