Home / 139,137.96-208,682.64-64,251.72

Finding the Fourth Proportional to 139,137.96, 208,682.64 and 64,251.72

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Solution

The fourth proportional to 139,137.96, 208,682.64 and 64,251.72 is: 96,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,137.96 : 208,682.64 = 64,251.72 : x
  2. Step 2: Convert to fraction form
    139,137.96/208,682.64 = 64,251.72/x
  3. Step 3: Cross multiply
    139,137.96x = 208,682.64 × 64,251.72
  4. Step 4: Simplify right side
    139,137.96x = 13,408,218,554.14
  5. Step 5: Solve for x
    x = 13,408,218,554.14/139,137.96
  6. Step 6: Final answer
    x = 96,366.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.