Home / 137,163.10-205,647.45-52,890.70

Finding the Fourth Proportional to 137,163.10, 205,647.45 and 52,890.70

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Solution

The fourth proportional to 137,163.10, 205,647.45 and 52,890.70 is: 79,298.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,163.10 : 205,647.45 = 52,890.70 : x
  2. Step 2: Convert to fraction form
    137,163.10/205,647.45 = 52,890.70/x
  3. Step 3: Cross multiply
    137,163.10x = 205,647.45 × 52,890.70
  4. Step 4: Simplify right side
    137,163.10x = 10,876,837,583.72
  5. Step 5: Solve for x
    x = 10,876,837,583.72/137,163.10
  6. Step 6: Final answer
    x = 79,298.57

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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.