Home / 117,519.64-162,298.14-100,654.36

Finding the Fourth Proportional to 117,519.64, 162,298.14 and 100,654.36

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Solution

The fourth proportional to 117,519.64, 162,298.14 and 100,654.36 is: 139,006.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,519.64 : 162,298.14 = 100,654.36 : x
  2. Step 2: Convert to fraction form
    117,519.64/162,298.14 = 100,654.36/x
  3. Step 3: Cross multiply
    117,519.64x = 162,298.14 × 100,654.36
  4. Step 4: Simplify right side
    117,519.64x = 16,336,015,410.89
  5. Step 5: Solve for x
    x = 16,336,015,410.89/117,519.64
  6. Step 6: Final answer
    x = 139,006.68

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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.