Home / 221,032.64-305,025.72-125,540.12

Finding the Fourth Proportional to 221,032.64, 305,025.72 and 125,540.12

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Solution

The fourth proportional to 221,032.64, 305,025.72 and 125,540.12 is: 173,245.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,032.64 : 305,025.72 = 125,540.12 : x
  2. Step 2: Convert to fraction form
    221,032.64/305,025.72 = 125,540.12/x
  3. Step 3: Cross multiply
    221,032.64x = 305,025.72 × 125,540.12
  4. Step 4: Simplify right side
    221,032.64x = 38,292,965,491.89
  5. Step 5: Solve for x
    x = 38,292,965,491.89/221,032.64
  6. Step 6: Final answer
    x = 173,245.75

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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.