Home / 202,729.20-279,744.86-112,070.55

Finding the Fourth Proportional to 202,729.20, 279,744.86 and 112,070.55

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Solution

The fourth proportional to 202,729.20, 279,744.86 and 112,070.55 is: 154,645.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,729.20 : 279,744.86 = 112,070.55 : x
  2. Step 2: Convert to fraction form
    202,729.20/279,744.86 = 112,070.55/x
  3. Step 3: Cross multiply
    202,729.20x = 279,744.86 × 112,070.55
  4. Step 4: Simplify right side
    202,729.20x = 31,351,159,759.52
  5. Step 5: Solve for x
    x = 31,351,159,759.52/202,729.20
  6. Step 6: Final answer
    x = 154,645.51

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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.