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Finding the Third Proportional to 75,276 and 112,920

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Solution

The third proportional to 75,276 and 112,920 is: 169,389.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,276 : 112,920 = 112,920 : x
  2. Step 2: Convert to fraction form
    75,276/112,920 = 112,920/x
  3. Step 3: Cross multiply
    75,276x = 112,920 × 112,920
  4. Step 4: Simplify right side
    75,276x = 12,750,926,400
  5. Step 5: Solve for x
    x = 12,750,926,400/75,276
  6. Step 6: Final answer
    x = 169,389.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.