Home / 156,738.83-235,076.81-76,742.33

Finding the Fourth Proportional to 156,738.83, 235,076.81 and 76,742.33

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Solution

The fourth proportional to 156,738.83, 235,076.81 and 76,742.33 is: 115,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,738.83 : 235,076.81 = 76,742.33 : x
  2. Step 2: Convert to fraction form
    156,738.83/235,076.81 = 76,742.33/x
  3. Step 3: Cross multiply
    156,738.83x = 235,076.81 × 76,742.33
  4. Step 4: Simplify right side
    156,738.83x = 18,040,340,569.27
  5. Step 5: Solve for x
    x = 18,040,340,569.27/156,738.83
  6. Step 6: Final answer
    x = 115,098.10

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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.