Home / 202,787.76-279,822.60-112,131.48

Finding the Fourth Proportional to 202,787.76, 279,822.60 and 112,131.48

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Solution

The fourth proportional to 202,787.76, 279,822.60 and 112,131.48 is: 154,727.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,787.76 : 279,822.60 = 112,131.48 : x
  2. Step 2: Convert to fraction form
    202,787.76/279,822.60 = 112,131.48/x
  3. Step 3: Cross multiply
    202,787.76x = 279,822.60 × 112,131.48
  4. Step 4: Simplify right side
    202,787.76x = 31,376,922,275.45
  5. Step 5: Solve for x
    x = 31,376,922,275.45/202,787.76
  6. Step 6: Final answer
    x = 154,727.89

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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.