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Finding the Fourth Proportional to 119,288.60, 164,620.32 and 65,575.88

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Solution

The fourth proportional to 119,288.60, 164,620.32 and 65,575.88 is: 90,495.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,288.60 : 164,620.32 = 65,575.88 : x
  2. Step 2: Convert to fraction form
    119,288.60/164,620.32 = 65,575.88/x
  3. Step 3: Cross multiply
    119,288.60x = 164,620.32 × 65,575.88
  4. Step 4: Simplify right side
    119,288.60x = 10,795,122,349.88
  5. Step 5: Solve for x
    x = 10,795,122,349.88/119,288.60
  6. Step 6: Final answer
    x = 90,495.84

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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.