Home / 202,721.69-279,734.51-112,063.05

Finding the Fourth Proportional to 202,721.69, 279,734.51 and 112,063.05

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Solution

The fourth proportional to 202,721.69, 279,734.51 and 112,063.05 is: 154,635.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,721.69 : 279,734.51 = 112,063.05 : x
  2. Step 2: Convert to fraction form
    202,721.69/279,734.51 = 112,063.05/x
  3. Step 3: Cross multiply
    202,721.69x = 279,734.51 × 112,063.05
  4. Step 4: Simplify right side
    202,721.69x = 31,347,902,661.01
  5. Step 5: Solve for x
    x = 31,347,902,661.01/202,721.69
  6. Step 6: Final answer
    x = 154,635.17

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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.