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Finding the Fourth Proportional to 138,097.44, 206,137.95 and 118,501.92

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Solution

The fourth proportional to 138,097.44, 206,137.95 and 118,501.92 is: 176,887.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,097.44 : 206,137.95 = 118,501.92 : x
  2. Step 2: Convert to fraction form
    138,097.44/206,137.95 = 118,501.92/x
  3. Step 3: Cross multiply
    138,097.44x = 206,137.95 × 118,501.92
  4. Step 4: Simplify right side
    138,097.44x = 24,427,742,859.86
  5. Step 5: Solve for x
    x = 24,427,742,859.86/138,097.44
  6. Step 6: Final answer
    x = 176,887.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.