Home / 119,091.14-178,404.51-66,341.78

Finding the Fourth Proportional to 119,091.14, 178,404.51 and 66,341.78

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Solution

The fourth proportional to 119,091.14, 178,404.51 and 66,341.78 is: 99,383.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,091.14 : 178,404.51 = 66,341.78 : x
  2. Step 2: Convert to fraction form
    119,091.14/178,404.51 = 66,341.78/x
  3. Step 3: Cross multiply
    119,091.14x = 178,404.51 × 66,341.78
  4. Step 4: Simplify right side
    119,091.14x = 11,835,672,753.43
  5. Step 5: Solve for x
    x = 11,835,672,753.43/119,091.14
  6. Step 6: Final answer
    x = 99,383.32

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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.