Home / 202,272.12-279,160.38-121,741.56

Finding the Fourth Proportional to 202,272.12, 279,160.38 and 121,741.56

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Solution

The fourth proportional to 202,272.12, 279,160.38 and 121,741.56 is: 168,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,272.12 : 279,160.38 = 121,741.56 : x
  2. Step 2: Convert to fraction form
    202,272.12/279,160.38 = 121,741.56/x
  3. Step 3: Cross multiply
    202,272.12x = 279,160.38 × 121,741.56
  4. Step 4: Simplify right side
    202,272.12x = 33,985,420,151.39
  5. Step 5: Solve for x
    x = 33,985,420,151.39/202,272.12
  6. Step 6: Final answer
    x = 168,018.31

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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.