Home / 139,221.17-208,798.27-64,269.35

Finding the Fourth Proportional to 139,221.17, 208,798.27 and 64,269.35

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Solution

The fourth proportional to 139,221.17, 208,798.27 and 64,269.35 is: 96,388.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,221.17 : 208,798.27 = 64,269.35 : x
  2. Step 2: Convert to fraction form
    139,221.17/208,798.27 = 64,269.35/x
  3. Step 3: Cross multiply
    139,221.17x = 208,798.27 × 64,269.35
  4. Step 4: Simplify right side
    139,221.17x = 13,419,329,626.73
  5. Step 5: Solve for x
    x = 13,419,329,626.73/139,221.17
  6. Step 6: Final answer
    x = 96,388.57

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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.