Home / 132,865.92-183,416.40-81,887.76

Finding the Fourth Proportional to 132,865.92, 183,416.40 and 81,887.76

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Solution

The fourth proportional to 132,865.92, 183,416.40 and 81,887.76 is: 113,042.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,865.92 : 183,416.40 = 81,887.76 : x
  2. Step 2: Convert to fraction form
    132,865.92/183,416.40 = 81,887.76/x
  3. Step 3: Cross multiply
    132,865.92x = 183,416.40 × 81,887.76
  4. Step 4: Simplify right side
    132,865.92x = 15,019,558,143.26
  5. Step 5: Solve for x
    x = 15,019,558,143.26/132,865.92
  6. Step 6: Final answer
    x = 113,042.97

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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.