Home / 202,076.40-278,859.04-111,436.19

Finding the Fourth Proportional to 202,076.40, 278,859.04 and 111,436.19

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Solution

The fourth proportional to 202,076.40, 278,859.04 and 111,436.19 is: 153,778.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,076.40 : 278,859.04 = 111,436.19 : x
  2. Step 2: Convert to fraction form
    202,076.40/278,859.04 = 111,436.19/x
  3. Step 3: Cross multiply
    202,076.40x = 278,859.04 × 111,436.19
  4. Step 4: Simplify right side
    202,076.40x = 31,074,988,337.49
  5. Step 5: Solve for x
    x = 31,074,988,337.49/202,076.40
  6. Step 6: Final answer
    x = 153,778.41

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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.