Home / 247,972.23-342,205.42-139,100.70

Finding the Fourth Proportional to 247,972.23, 342,205.42 and 139,100.70

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Solution

The fourth proportional to 247,972.23, 342,205.42 and 139,100.70 is: 191,961.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,972.23 : 342,205.42 = 139,100.70 : x
  2. Step 2: Convert to fraction form
    247,972.23/342,205.42 = 139,100.70/x
  3. Step 3: Cross multiply
    247,972.23x = 342,205.42 × 139,100.70
  4. Step 4: Simplify right side
    247,972.23x = 47,601,012,471.41
  5. Step 5: Solve for x
    x = 47,601,012,471.41/247,972.23
  6. Step 6: Final answer
    x = 191,961.06

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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.