Home / 138,021.39-207,032.12-43,251.56

Finding the Fourth Proportional to 138,021.39, 207,032.12 and 43,251.56

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Solution

The fourth proportional to 138,021.39, 207,032.12 and 43,251.56 is: 64,877.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,021.39 : 207,032.12 = 43,251.56 : x
  2. Step 2: Convert to fraction form
    138,021.39/207,032.12 = 43,251.56/x
  3. Step 3: Cross multiply
    138,021.39x = 207,032.12 × 43,251.56
  4. Step 4: Simplify right side
    138,021.39x = 8,954,462,429.53
  5. Step 5: Solve for x
    x = 8,954,462,429.53/138,021.39
  6. Step 6: Final answer
    x = 64,877.35

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1.5x scale

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.