Home / 202,678.62-279,716.40-112,055.82

Finding the Fourth Proportional to 202,678.62, 279,716.40 and 112,055.82

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Solution

The fourth proportional to 202,678.62, 279,716.40 and 112,055.82 is: 154,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,678.62 : 279,716.40 = 112,055.82 : x
  2. Step 2: Convert to fraction form
    202,678.62/279,716.40 = 112,055.82/x
  3. Step 3: Cross multiply
    202,678.62x = 279,716.40 × 112,055.82
  4. Step 4: Simplify right side
    202,678.62x = 31,343,850,569.45
  5. Step 5: Solve for x
    x = 31,343,850,569.45/202,678.62
  6. Step 6: Final answer
    x = 154,648.04

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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.