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Finding the Third Proportional to 125,572 and 189,638

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Solution

The third proportional to 125,572 and 189,638 is: 286,390.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,572 : 189,638 = 189,638 : x
  2. Step 2: Convert to fraction form
    125,572/189,638 = 189,638/x
  3. Step 3: Cross multiply
    125,572x = 189,638 × 189,638
  4. Step 4: Simplify right side
    125,572x = 35,962,571,044
  5. Step 5: Solve for x
    x = 35,962,571,044/125,572
  6. Step 6: Final answer
    x = 286,390.05

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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.