Home / 131,609.43-181,620.49-71,180.14

Finding the Fourth Proportional to 131,609.43, 181,620.49 and 71,180.14

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Solution

The fourth proportional to 131,609.43, 181,620.49 and 71,180.14 is: 98,228.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,609.43 : 181,620.49 = 71,180.14 : x
  2. Step 2: Convert to fraction form
    131,609.43/181,620.49 = 71,180.14/x
  3. Step 3: Cross multiply
    131,609.43x = 181,620.49 × 71,180.14
  4. Step 4: Simplify right side
    131,609.43x = 12,927,771,905.07
  5. Step 5: Solve for x
    x = 12,927,771,905.07/131,609.43
  6. Step 6: Final answer
    x = 98,228.31

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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.