Home / 202,355.12-279,252.32-111,711.14

Finding the Fourth Proportional to 202,355.12, 279,252.32 and 111,711.14

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Solution

The fourth proportional to 202,355.12, 279,252.32 and 111,711.14 is: 154,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,355.12 : 279,252.32 = 111,711.14 : x
  2. Step 2: Convert to fraction form
    202,355.12/279,252.32 = 111,711.14/x
  3. Step 3: Cross multiply
    202,355.12x = 279,252.32 × 111,711.14
  4. Step 4: Simplify right side
    202,355.12x = 31,195,593,060.03
  5. Step 5: Solve for x
    x = 31,195,593,060.03/202,355.12
  6. Step 6: Final answer
    x = 154,162.61

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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.