Home / 202,057.15-278,833.50-111,411.57

Finding the Fourth Proportional to 202,057.15, 278,833.50 and 111,411.57

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Solution

The fourth proportional to 202,057.15, 278,833.50 and 111,411.57 is: 153,745.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,057.15 : 278,833.50 = 111,411.57 : x
  2. Step 2: Convert to fraction form
    202,057.15/278,833.50 = 111,411.57/x
  3. Step 3: Cross multiply
    202,057.15x = 278,833.50 × 111,411.57
  4. Step 4: Simplify right side
    202,057.15x = 31,065,278,003.60
  5. Step 5: Solve for x
    x = 31,065,278,003.60/202,057.15
  6. Step 6: Final answer
    x = 153,745.01

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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.