Home / 109,872.66-164,815.43-42,405.06

Finding the Fourth Proportional to 109,872.66, 164,815.43 and 42,405.06

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Solution

The fourth proportional to 109,872.66, 164,815.43 and 42,405.06 is: 63,610.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,872.66 : 164,815.43 = 42,405.06 : x
  2. Step 2: Convert to fraction form
    109,872.66/164,815.43 = 42,405.06/x
  3. Step 3: Cross multiply
    109,872.66x = 164,815.43 × 42,405.06
  4. Step 4: Simplify right side
    109,872.66x = 6,989,007,986.05
  5. Step 5: Solve for x
    x = 6,989,007,986.05/109,872.66
  6. Step 6: Final answer
    x = 63,610.07

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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.