Home / 119,208.96-178,577.28-81,676.80

Finding the Fourth Proportional to 119,208.96, 178,577.28 and 81,676.80

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Solution

The fourth proportional to 119,208.96, 178,577.28 and 81,676.80 is: 122,353.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,208.96 : 178,577.28 = 81,676.80 : x
  2. Step 2: Convert to fraction form
    119,208.96/178,577.28 = 81,676.80/x
  3. Step 3: Cross multiply
    119,208.96x = 178,577.28 × 81,676.80
  4. Step 4: Simplify right side
    119,208.96x = 14,585,620,783.10
  5. Step 5: Solve for x
    x = 14,585,620,783.10/119,208.96
  6. Step 6: Final answer
    x = 122,353.39

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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.