Home / 131,865.72-181,993.26-75,280.44

Finding the Fourth Proportional to 131,865.72, 181,993.26 and 75,280.44

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Solution

The fourth proportional to 131,865.72, 181,993.26 and 75,280.44 is: 103,897.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,865.72 : 181,993.26 = 75,280.44 : x
  2. Step 2: Convert to fraction form
    131,865.72/181,993.26 = 75,280.44/x
  3. Step 3: Cross multiply
    131,865.72x = 181,993.26 × 75,280.44
  4. Step 4: Simplify right side
    131,865.72x = 13,700,532,689.83
  5. Step 5: Solve for x
    x = 13,700,532,689.83/131,865.72
  6. Step 6: Final answer
    x = 103,897.61

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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.