Home / 138,163.12-207,244.66-38,323.32

Finding the Fourth Proportional to 138,163.12, 207,244.66 and 38,323.32

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Solution

The fourth proportional to 138,163.12, 207,244.66 and 38,323.32 is: 57,484.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,163.12 : 207,244.66 = 38,323.32 : x
  2. Step 2: Convert to fraction form
    138,163.12/207,244.66 = 38,323.32/x
  3. Step 3: Cross multiply
    138,163.12x = 207,244.66 × 38,323.32
  4. Step 4: Simplify right side
    138,163.12x = 7,942,303,423.47
  5. Step 5: Solve for x
    x = 7,942,303,423.47/138,163.12
  6. Step 6: Final answer
    x = 57,484.97

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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.