Home / 236,172.30-354,181.69-78,358.38

Finding the Fourth Proportional to 236,172.30, 354,181.69 and 78,358.38

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Solution

The fourth proportional to 236,172.30, 354,181.69 and 78,358.38 is: 117,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,172.30 : 354,181.69 = 78,358.38 : x
  2. Step 2: Convert to fraction form
    236,172.30/354,181.69 = 78,358.38/x
  3. Step 3: Cross multiply
    236,172.30x = 354,181.69 × 78,358.38
  4. Step 4: Simplify right side
    236,172.30x = 27,753,103,454.06
  5. Step 5: Solve for x
    x = 27,753,103,454.06/236,172.30
  6. Step 6: Final answer
    x = 117,512.10

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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.