Home / 138,569.28-191,227.37-84,105.69

Finding the Fourth Proportional to 138,569.28, 191,227.37 and 84,105.69

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Solution

The fourth proportional to 138,569.28, 191,227.37 and 84,105.69 is: 116,066.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,569.28 : 191,227.37 = 84,105.69 : x
  2. Step 2: Convert to fraction form
    138,569.28/191,227.37 = 84,105.69/x
  3. Step 3: Cross multiply
    138,569.28x = 191,227.37 × 84,105.69
  4. Step 4: Simplify right side
    138,569.28x = 16,083,309,900.74
  5. Step 5: Solve for x
    x = 16,083,309,900.74/138,569.28
  6. Step 6: Final answer
    x = 116,066.92

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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.