Home / 138,277.98-207,465.57-79,163.10

Finding the Fourth Proportional to 138,277.98, 207,465.57 and 79,163.10

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Solution

The fourth proportional to 138,277.98, 207,465.57 and 79,163.10 is: 118,772.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,277.98 : 207,465.57 = 79,163.10 : x
  2. Step 2: Convert to fraction form
    138,277.98/207,465.57 = 79,163.10/x
  3. Step 3: Cross multiply
    138,277.98x = 207,465.57 × 79,163.10
  4. Step 4: Simplify right side
    138,277.98x = 16,423,617,664.47
  5. Step 5: Solve for x
    x = 16,423,617,664.47/138,277.98
  6. Step 6: Final answer
    x = 118,772.47

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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.