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Finding the Fourth Proportional to 154,980.88, 213,818.61 and 101,296.89

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Solution

The fourth proportional to 154,980.88, 213,818.61 and 101,296.89 is: 139,753.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,980.88 : 213,818.61 = 101,296.89 : x
  2. Step 2: Convert to fraction form
    154,980.88/213,818.61 = 101,296.89/x
  3. Step 3: Cross multiply
    154,980.88x = 213,818.61 × 101,296.89
  4. Step 4: Simplify right side
    154,980.88x = 21,659,160,217.12
  5. Step 5: Solve for x
    x = 21,659,160,217.12/154,980.88
  6. Step 6: Final answer
    x = 139,753.76

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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.