Home / 119,955.12-178,962.78-107,998.44

Finding the Fourth Proportional to 119,955.12, 178,962.78 and 107,998.44

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Solution

The fourth proportional to 119,955.12, 178,962.78 and 107,998.44 is: 161,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,955.12 : 178,962.78 = 107,998.44 : x
  2. Step 2: Convert to fraction form
    119,955.12/178,962.78 = 107,998.44/x
  3. Step 3: Cross multiply
    119,955.12x = 178,962.78 × 107,998.44
  4. Step 4: Simplify right side
    119,955.12x = 19,327,701,058.06
  5. Step 5: Solve for x
    x = 19,327,701,058.06/119,955.12
  6. Step 6: Final answer
    x = 161,124.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.