Home / 202,639.58-279,648.18-112,001.36

Finding the Fourth Proportional to 202,639.58, 279,648.18 and 112,001.36

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Solution

The fourth proportional to 202,639.58, 279,648.18 and 112,001.36 is: 154,564.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,639.58 : 279,648.18 = 112,001.36 : x
  2. Step 2: Convert to fraction form
    202,639.58/279,648.18 = 112,001.36/x
  3. Step 3: Cross multiply
    202,639.58x = 279,648.18 × 112,001.36
  4. Step 4: Simplify right side
    202,639.58x = 31,320,976,481.52
  5. Step 5: Solve for x
    x = 31,320,976,481.52/202,639.58
  6. Step 6: Final answer
    x = 154,564.95

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1.5x scale

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.