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Finding the Fourth Proportional to 154,980.63, 213,818.27 and 101,296.64

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Solution

The fourth proportional to 154,980.63, 213,818.27 and 101,296.64 is: 139,753.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,980.63 : 213,818.27 = 101,296.64 : x
  2. Step 2: Convert to fraction form
    154,980.63/213,818.27 = 101,296.64/x
  3. Step 3: Cross multiply
    154,980.63x = 213,818.27 × 101,296.64
  4. Step 4: Simplify right side
    154,980.63x = 21,659,072,349.68
  5. Step 5: Solve for x
    x = 21,659,072,349.68/154,980.63
  6. Step 6: Final answer
    x = 139,753.42

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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.