Home / 131,767.35-181,840.41-71,339.31

Finding the Fourth Proportional to 131,767.35, 181,840.41 and 71,339.31

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Solution

The fourth proportional to 131,767.35, 181,840.41 and 71,339.31 is: 98,449.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,767.35 : 181,840.41 = 71,339.31 : x
  2. Step 2: Convert to fraction form
    131,767.35/181,840.41 = 71,339.31/x
  3. Step 3: Cross multiply
    131,767.35x = 181,840.41 × 71,339.31
  4. Step 4: Simplify right side
    131,767.35x = 12,972,369,379.52
  5. Step 5: Solve for x
    x = 12,972,369,379.52/131,767.35
  6. Step 6: Final answer
    x = 98,449.04

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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.