Home / 87,916.48-132,564.32-80,568.16

Finding the Fourth Proportional to 87,916.48, 132,564.32 and 80,568.16

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Solution

The fourth proportional to 87,916.48, 132,564.32 and 80,568.16 is: 121,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,916.48 : 132,564.32 = 80,568.16 : x
  2. Step 2: Convert to fraction form
    87,916.48/132,564.32 = 80,568.16/x
  3. Step 3: Cross multiply
    87,916.48x = 132,564.32 × 80,568.16
  4. Step 4: Simplify right side
    87,916.48x = 10,680,463,344.05
  5. Step 5: Solve for x
    x = 10,680,463,344.05/87,916.48
  6. Step 6: Final answer
    x = 121,484.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.