Home / 131,700.57-181,745.38-71,269.86

Finding the Fourth Proportional to 131,700.57, 181,745.38 and 71,269.86

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Solution

The fourth proportional to 131,700.57, 181,745.38 and 71,269.86 is: 98,351.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,700.57 : 181,745.38 = 71,269.86 : x
  2. Step 2: Convert to fraction form
    131,700.57/181,745.38 = 71,269.86/x
  3. Step 3: Cross multiply
    131,700.57x = 181,745.38 × 71,269.86
  4. Step 4: Simplify right side
    131,700.57x = 12,952,967,788.25
  5. Step 5: Solve for x
    x = 12,952,967,788.25/131,700.57
  6. Step 6: Final answer
    x = 98,351.65

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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.