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Finding the Fourth Proportional to 119,990, 179,951.88 and 45,104.24

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Solution

The fourth proportional to 119,990, 179,951.88 and 45,104.24 is: 67,643.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,990 : 179,951.88 = 45,104.24 : x
  2. Step 2: Convert to fraction form
    119,990/179,951.88 = 45,104.24/x
  3. Step 3: Cross multiply
    119,990x = 179,951.88 × 45,104.24
  4. Step 4: Simplify right side
    119,990x = 8,116,592,783.97
  5. Step 5: Solve for x
    x = 8,116,592,783.97/119,990
  6. Step 6: Final answer
    x = 67,643.91

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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.