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Finding the Third Proportional to 79,031.25 and 121,178.25

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Solution

The third proportional to 79,031.25 and 121,178.25 is: 185,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,031.25 : 121,178.25 = 121,178.25 : x
  2. Step 2: Convert to fraction form
    79,031.25/121,178.25 = 121,178.25/x
  3. Step 3: Cross multiply
    79,031.25x = 121,178.25 × 121,178.25
  4. Step 4: Simplify right side
    79,031.25x = 14,684,168,273.06
  5. Step 5: Solve for x
    x = 14,684,168,273.06/79,031.25
  6. Step 6: Final answer
    x = 185,802.05

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.