Home / 131,881.35-181,996.02-71,453.54

Finding the Fourth Proportional to 131,881.35, 181,996.02 and 71,453.54

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Solution

The fourth proportional to 131,881.35, 181,996.02 and 71,453.54 is: 98,605.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,881.35 : 181,996.02 = 71,453.54 : x
  2. Step 2: Convert to fraction form
    131,881.35/181,996.02 = 71,453.54/x
  3. Step 3: Cross multiply
    131,881.35x = 181,996.02 × 71,453.54
  4. Step 4: Simplify right side
    131,881.35x = 13,004,259,894.91
  5. Step 5: Solve for x
    x = 13,004,259,894.91/131,881.35
  6. Step 6: Final answer
    x = 98,605.75

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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.