Home / 132,416.56-182,738.39-71,991.28

Finding the Fourth Proportional to 132,416.56, 182,738.39 and 71,991.28

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Solution

The fourth proportional to 132,416.56, 182,738.39 and 71,991.28 is: 99,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,416.56 : 182,738.39 = 71,991.28 : x
  2. Step 2: Convert to fraction form
    132,416.56/182,738.39 = 71,991.28/x
  3. Step 3: Cross multiply
    132,416.56x = 182,738.39 × 71,991.28
  4. Step 4: Simplify right side
    132,416.56x = 13,155,569,784.44
  5. Step 5: Solve for x
    x = 13,155,569,784.44/132,416.56
  6. Step 6: Final answer
    x = 99,349.89

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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.