Home / 212,410.20-292,976.81-139,789.96

Finding the Fourth Proportional to 212,410.20, 292,976.81 and 139,789.96

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Solution

The fourth proportional to 212,410.20, 292,976.81 and 139,789.96 is: 192,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,410.20 : 292,976.81 = 139,789.96 : x
  2. Step 2: Convert to fraction form
    212,410.20/292,976.81 = 139,789.96/x
  3. Step 3: Cross multiply
    212,410.20x = 292,976.81 × 139,789.96
  4. Step 4: Simplify right side
    212,410.20x = 40,955,216,550.83
  5. Step 5: Solve for x
    x = 40,955,216,550.83/212,410.20
  6. Step 6: Final answer
    x = 192,811.91

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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.