Home / 131,693.28-181,819.80-91,394.16

Finding the Fourth Proportional to 131,693.28, 181,819.80 and 91,394.16

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Solution

The fourth proportional to 131,693.28, 181,819.80 and 91,394.16 is: 126,181.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,693.28 : 181,819.80 = 91,394.16 : x
  2. Step 2: Convert to fraction form
    131,693.28/181,819.80 = 91,394.16/x
  3. Step 3: Cross multiply
    131,693.28x = 181,819.80 × 91,394.16
  4. Step 4: Simplify right side
    131,693.28x = 16,617,267,892.37
  5. Step 5: Solve for x
    x = 16,617,267,892.37/131,693.28
  6. Step 6: Final answer
    x = 126,181.59

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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.