Home / 213,138.57-294,131.25-117,645.29

Finding the Fourth Proportional to 213,138.57, 294,131.25 and 117,645.29

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Solution

The fourth proportional to 213,138.57, 294,131.25 and 117,645.29 is: 162,350.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,138.57 : 294,131.25 = 117,645.29 : x
  2. Step 2: Convert to fraction form
    213,138.57/294,131.25 = 117,645.29/x
  3. Step 3: Cross multiply
    213,138.57x = 294,131.25 × 117,645.29
  4. Step 4: Simplify right side
    213,138.57x = 34,603,156,204.31
  5. Step 5: Solve for x
    x = 34,603,156,204.31/213,138.57
  6. Step 6: Final answer
    x = 162,350.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.