Home / 202,856.22-279,920.02-112,197.78

Finding the Fourth Proportional to 202,856.22, 279,920.02 and 112,197.78

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Solution

The fourth proportional to 202,856.22, 279,920.02 and 112,197.78 is: 154,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,856.22 : 279,920.02 = 112,197.78 : x
  2. Step 2: Convert to fraction form
    202,856.22/279,920.02 = 112,197.78/x
  3. Step 3: Cross multiply
    202,856.22x = 279,920.02 × 112,197.78
  4. Step 4: Simplify right side
    202,856.22x = 31,406,404,821.56
  5. Step 5: Solve for x
    x = 31,406,404,821.56/202,856.22
  6. Step 6: Final answer
    x = 154,821.01

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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.