Home / 202,742.68-279,772.92-112,091.52

Finding the Fourth Proportional to 202,742.68, 279,772.92 and 112,091.52

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Solution

The fourth proportional to 202,742.68, 279,772.92 and 112,091.52 is: 154,679.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,742.68 : 279,772.92 = 112,091.52 : x
  2. Step 2: Convert to fraction form
    202,742.68/279,772.92 = 112,091.52/x
  3. Step 3: Cross multiply
    202,742.68x = 279,772.92 × 112,091.52
  4. Step 4: Simplify right side
    202,742.68x = 31,360,171,857.64
  5. Step 5: Solve for x
    x = 31,360,171,857.64/202,742.68
  6. Step 6: Final answer
    x = 154,679.68

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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.