Home / 247,876.72-371,795.64-90,140.56

Finding the Fourth Proportional to 247,876.72, 371,795.64 and 90,140.56

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Solution

The fourth proportional to 247,876.72, 371,795.64 and 90,140.56 is: 135,203.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,876.72 : 371,795.64 = 90,140.56 : x
  2. Step 2: Convert to fraction form
    247,876.72/371,795.64 = 90,140.56/x
  3. Step 3: Cross multiply
    247,876.72x = 371,795.64 × 90,140.56
  4. Step 4: Simplify right side
    247,876.72x = 33,513,867,195.16
  5. Step 5: Solve for x
    x = 33,513,867,195.16/247,876.72
  6. Step 6: Final answer
    x = 135,203.77

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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.