Home / 247,949.14-342,145.89-139,057.89

Finding the Fourth Proportional to 247,949.14, 342,145.89 and 139,057.89

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Solution

The fourth proportional to 247,949.14, 342,145.89 and 139,057.89 is: 191,886.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,949.14 : 342,145.89 = 139,057.89 : x
  2. Step 2: Convert to fraction form
    247,949.14/342,145.89 = 139,057.89/x
  3. Step 3: Cross multiply
    247,949.14x = 342,145.89 × 139,057.89
  4. Step 4: Simplify right side
    247,949.14x = 47,578,085,535.57
  5. Step 5: Solve for x
    x = 47,578,085,535.57/247,949.14
  6. Step 6: Final answer
    x = 191,886.47

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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.