Home / 102,787.86-154,192.08-27,909.24

Finding the Fourth Proportional to 102,787.86, 154,192.08 and 27,909.24

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Solution

The fourth proportional to 102,787.86, 154,192.08 and 27,909.24 is: 41,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,787.86 : 154,192.08 = 27,909.24 : x
  2. Step 2: Convert to fraction form
    102,787.86/154,192.08 = 27,909.24/x
  3. Step 3: Cross multiply
    102,787.86x = 154,192.08 × 27,909.24
  4. Step 4: Simplify right side
    102,787.86x = 4,303,383,766.82
  5. Step 5: Solve for x
    x = 4,303,383,766.82/102,787.86
  6. Step 6: Final answer
    x = 41,866.65

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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.