Home / 201,814.42-278,502.60-111,168.28

Finding the Fourth Proportional to 201,814.42, 278,502.60 and 111,168.28

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Solution

The fourth proportional to 201,814.42, 278,502.60 and 111,168.28 is: 153,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,814.42 : 278,502.60 = 111,168.28 : x
  2. Step 2: Convert to fraction form
    201,814.42/278,502.60 = 111,168.28/x
  3. Step 3: Cross multiply
    201,814.42x = 278,502.60 × 111,168.28
  4. Step 4: Simplify right side
    201,814.42x = 30,960,655,017.53
  5. Step 5: Solve for x
    x = 30,960,655,017.53/201,814.42
  6. Step 6: Final answer
    x = 153,411.51

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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.