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Finding the Third Proportional to 79,154.88 and 116,639.29

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Solution

The third proportional to 79,154.88 and 116,639.29 is: 171,874.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,154.88 : 116,639.29 = 116,639.29 : x
  2. Step 2: Convert to fraction form
    79,154.88/116,639.29 = 116,639.29/x
  3. Step 3: Cross multiply
    79,154.88x = 116,639.29 × 116,639.29
  4. Step 4: Simplify right side
    79,154.88x = 13,604,723,525.19
  5. Step 5: Solve for x
    x = 13,604,723,525.19/79,154.88
  6. Step 6: Final answer
    x = 171,874.74

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.