Home / 202,257.06-279,120.66-111,618.90

Finding the Fourth Proportional to 202,257.06, 279,120.66 and 111,618.90

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Solution

The fourth proportional to 202,257.06, 279,120.66 and 111,618.90 is: 154,037.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,257.06 : 279,120.66 = 111,618.90 : x
  2. Step 2: Convert to fraction form
    202,257.06/279,120.66 = 111,618.90/x
  3. Step 3: Cross multiply
    202,257.06x = 279,120.66 × 111,618.90
  4. Step 4: Simplify right side
    202,257.06x = 31,155,141,036.47
  5. Step 5: Solve for x
    x = 31,155,141,036.47/202,257.06
  6. Step 6: Final answer
    x = 154,037.35

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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.