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Finding the Fourth Proportional to 119,369.80, 164,722.28 and 68,382.76

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Solution

The fourth proportional to 119,369.80, 164,722.28 and 68,382.76 is: 94,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,369.80 : 164,722.28 = 68,382.76 : x
  2. Step 2: Convert to fraction form
    119,369.80/164,722.28 = 68,382.76/x
  3. Step 3: Cross multiply
    119,369.80x = 164,722.28 × 68,382.76
  4. Step 4: Simplify right side
    119,369.80x = 11,264,164,139.89
  5. Step 5: Solve for x
    x = 11,264,164,139.89/119,369.80
  6. Step 6: Final answer
    x = 94,363.60

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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.