Home / 201,700.28-278,344.13-111,054.39

Finding the Fourth Proportional to 201,700.28, 278,344.13 and 111,054.39

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Solution

The fourth proportional to 201,700.28, 278,344.13 and 111,054.39 is: 153,253.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,700.28 : 278,344.13 = 111,054.39 : x
  2. Step 2: Convert to fraction form
    201,700.28/278,344.13 = 111,054.39/x
  3. Step 3: Cross multiply
    201,700.28x = 278,344.13 × 111,054.39
  4. Step 4: Simplify right side
    201,700.28x = 30,911,337,011.96
  5. Step 5: Solve for x
    x = 30,911,337,011.96/201,700.28
  6. Step 6: Final answer
    x = 153,253.82

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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.