Home / 137,256.75-189,414.27-76,827.38

Finding the Fourth Proportional to 137,256.75, 189,414.27 and 76,827.38

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Solution

The fourth proportional to 137,256.75, 189,414.27 and 76,827.38 is: 106,021.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,256.75 : 189,414.27 = 76,827.38 : x
  2. Step 2: Convert to fraction form
    137,256.75/189,414.27 = 76,827.38/x
  3. Step 3: Cross multiply
    137,256.75x = 189,414.27 × 76,827.38
  4. Step 4: Simplify right side
    137,256.75x = 14,552,201,151.64
  5. Step 5: Solve for x
    x = 14,552,201,151.64/137,256.75
  6. Step 6: Final answer
    x = 106,021.75

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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.