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Finding the Fourth Proportional to 99,274, 148,911 and 25,402

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Solution

The fourth proportional to 99,274, 148,911 and 25,402 is: 38,103

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,274 : 148,911 = 25,402 : x
  2. Step 2: Convert to fraction form
    99,274/148,911 = 25,402/x
  3. Step 3: Cross multiply
    99,274x = 148,911 × 25,402
  4. Step 4: Simplify right side
    99,274x = 3,782,637,222
  5. Step 5: Solve for x
    x = 3,782,637,222/99,274
  6. Step 6: Final answer
    x = 38,103

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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.