Home / 126,906.89-190,226.39-42,587.11

Finding the Fourth Proportional to 126,906.89, 190,226.39 and 42,587.11

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Solution

The fourth proportional to 126,906.89, 190,226.39 and 42,587.11 is: 63,835.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,906.89 : 190,226.39 = 42,587.11 : x
  2. Step 2: Convert to fraction form
    126,906.89/190,226.39 = 42,587.11/x
  3. Step 3: Cross multiply
    126,906.89x = 190,226.39 × 42,587.11
  4. Step 4: Simplify right side
    126,906.89x = 8,101,191,507.33
  5. Step 5: Solve for x
    x = 8,101,191,507.33/126,906.89
  6. Step 6: Final answer
    x = 63,835.71

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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.