Home / 201,700.36-278,344.20-111,054.43

Finding the Fourth Proportional to 201,700.36, 278,344.20 and 111,054.43

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Solution

The fourth proportional to 201,700.36, 278,344.20 and 111,054.43 is: 153,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,700.36 : 278,344.20 = 111,054.43 : x
  2. Step 2: Convert to fraction form
    201,700.36/278,344.20 = 111,054.43/x
  3. Step 3: Cross multiply
    201,700.36x = 278,344.20 × 111,054.43
  4. Step 4: Simplify right side
    201,700.36x = 30,911,356,474.81
  5. Step 5: Solve for x
    x = 30,911,356,474.81/201,700.36
  6. Step 6: Final answer
    x = 153,253.85

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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.