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Finding the Fourth Proportional to 133,352, 184,018.20 and 72,911.42

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Solution

The fourth proportional to 133,352, 184,018.20 and 72,911.42 is: 100,613.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,352 : 184,018.20 = 72,911.42 : x
  2. Step 2: Convert to fraction form
    133,352/184,018.20 = 72,911.42/x
  3. Step 3: Cross multiply
    133,352x = 184,018.20 × 72,911.42
  4. Step 4: Simplify right side
    133,352x = 13,417,028,267.84
  5. Step 5: Solve for x
    x = 13,417,028,267.84/133,352
  6. Step 6: Final answer
    x = 100,613.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.