Home / 202,028.13-278,800.80-111,387.66

Finding the Fourth Proportional to 202,028.13, 278,800.80 and 111,387.66

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Solution

The fourth proportional to 202,028.13, 278,800.80 and 111,387.66 is: 153,716.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,028.13 : 278,800.80 = 111,387.66 : x
  2. Step 2: Convert to fraction form
    202,028.13/278,800.80 = 111,387.66/x
  3. Step 3: Cross multiply
    202,028.13x = 278,800.80 × 111,387.66
  4. Step 4: Simplify right side
    202,028.13x = 31,054,968,718.13
  5. Step 5: Solve for x
    x = 31,054,968,718.13/202,028.13
  6. Step 6: Final answer
    x = 153,716.06

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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.