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Finding the Third Proportional to 99,572 and 157,743

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Solution

The third proportional to 99,572 and 157,743 is: 249,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,572 : 157,743 = 157,743 : x
  2. Step 2: Convert to fraction form
    99,572/157,743 = 157,743/x
  3. Step 3: Cross multiply
    99,572x = 157,743 × 157,743
  4. Step 4: Simplify right side
    99,572x = 24,882,854,049
  5. Step 5: Solve for x
    x = 24,882,854,049/99,572
  6. Step 6: Final answer
    x = 249,898.10

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.