Home / 245,992.11-369,039.93-139,427.12

Finding the Fourth Proportional to 245,992.11, 369,039.93 and 139,427.12

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Solution

The fourth proportional to 245,992.11, 369,039.93 and 139,427.12 is: 209,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,992.11 : 369,039.93 = 139,427.12 : x
  2. Step 2: Convert to fraction form
    245,992.11/369,039.93 = 139,427.12/x
  3. Step 3: Cross multiply
    245,992.11x = 369,039.93 × 139,427.12
  4. Step 4: Simplify right side
    245,992.11x = 51,454,172,759.70
  5. Step 5: Solve for x
    x = 51,454,172,759.70/245,992.11
  6. Step 6: Final answer
    x = 209,170.01

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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.