Home / 202,849.21-279,910.37-112,190.77

Finding the Fourth Proportional to 202,849.21, 279,910.37 and 112,190.77

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Solution

The fourth proportional to 202,849.21, 279,910.37 and 112,190.77 is: 154,811.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,849.21 : 279,910.37 = 112,190.77 : x
  2. Step 2: Convert to fraction form
    202,849.21/279,910.37 = 112,190.77/x
  3. Step 3: Cross multiply
    202,849.21x = 279,910.37 × 112,190.77
  4. Step 4: Simplify right side
    202,849.21x = 31,403,357,980.78
  5. Step 5: Solve for x
    x = 31,403,357,980.78/202,849.21
  6. Step 6: Final answer
    x = 154,811.34

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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.