Home / 131,804.20-181,889.48-71,374.86

Finding the Fourth Proportional to 131,804.20, 181,889.48 and 71,374.86

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Solution

The fourth proportional to 131,804.20, 181,889.48 and 71,374.86 is: 98,497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,804.20 : 181,889.48 = 71,374.86 : x
  2. Step 2: Convert to fraction form
    131,804.20/181,889.48 = 71,374.86/x
  3. Step 3: Cross multiply
    131,804.20x = 181,889.48 × 71,374.86
  4. Step 4: Simplify right side
    131,804.20x = 12,982,336,170.47
  5. Step 5: Solve for x
    x = 12,982,336,170.47/131,804.20
  6. Step 6: Final answer
    x = 98,497.14

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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.