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Finding the Fourth Proportional to 131,615.37, 181,628.67 and 71,186.08

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Solution

The fourth proportional to 131,615.37, 181,628.67 and 71,186.08 is: 98,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,615.37 : 181,628.67 = 71,186.08 : x
  2. Step 2: Convert to fraction form
    131,615.37/181,628.67 = 71,186.08/x
  3. Step 3: Cross multiply
    131,615.37x = 181,628.67 × 71,186.08
  4. Step 4: Simplify right side
    131,615.37x = 12,929,433,032.91
  5. Step 5: Solve for x
    x = 12,929,433,032.91/131,615.37
  6. Step 6: Final answer
    x = 98,236.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.