Home / 202,355.15-279,250.50-111,711.23

Finding the Fourth Proportional to 202,355.15, 279,250.50 and 111,711.23

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Solution

The fourth proportional to 202,355.15, 279,250.50 and 111,711.23 is: 154,161.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,355.15 : 279,250.50 = 111,711.23 : x
  2. Step 2: Convert to fraction form
    202,355.15/279,250.50 = 111,711.23/x
  3. Step 3: Cross multiply
    202,355.15x = 279,250.50 × 111,711.23
  4. Step 4: Simplify right side
    202,355.15x = 31,195,415,436.86
  5. Step 5: Solve for x
    x = 31,195,415,436.86/202,355.15
  6. Step 6: Final answer
    x = 154,161.71

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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.