Home / 132,979.56-183,495.30-81,322.62

Finding the Fourth Proportional to 132,979.56, 183,495.30 and 81,322.62

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Solution

The fourth proportional to 132,979.56, 183,495.30 and 81,322.62 is: 112,215.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,979.56 : 183,495.30 = 81,322.62 : x
  2. Step 2: Convert to fraction form
    132,979.56/183,495.30 = 81,322.62/x
  3. Step 3: Cross multiply
    132,979.56x = 183,495.30 × 81,322.62
  4. Step 4: Simplify right side
    132,979.56x = 14,922,318,553.69
  5. Step 5: Solve for x
    x = 14,922,318,553.69/132,979.56
  6. Step 6: Final answer
    x = 112,215.13

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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.