Home / 131,836.48-181,945.53-74,486.34

Finding the Fourth Proportional to 131,836.48, 181,945.53 and 74,486.34

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Solution

The fourth proportional to 131,836.48, 181,945.53 and 74,486.34 is: 102,797.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,836.48 : 181,945.53 = 74,486.34 : x
  2. Step 2: Convert to fraction form
    131,836.48/181,945.53 = 74,486.34/x
  3. Step 3: Cross multiply
    131,836.48x = 181,945.53 × 74,486.34
  4. Step 4: Simplify right side
    131,836.48x = 13,552,456,236.63
  5. Step 5: Solve for x
    x = 13,552,456,236.63/131,836.48
  6. Step 6: Final answer
    x = 102,797.47

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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.