Home / 112,704.20-155,536.64-62,403.20

Finding the Fourth Proportional to 112,704.20, 155,536.64 and 62,403.20

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Solution

The fourth proportional to 112,704.20, 155,536.64 and 62,403.20 is: 86,119.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,704.20 : 155,536.64 = 62,403.20 : x
  2. Step 2: Convert to fraction form
    112,704.20/155,536.64 = 62,403.20/x
  3. Step 3: Cross multiply
    112,704.20x = 155,536.64 × 62,403.20
  4. Step 4: Simplify right side
    112,704.20x = 9,705,982,963.55
  5. Step 5: Solve for x
    x = 9,705,982,963.55/112,704.20
  6. Step 6: Final answer
    x = 86,119.09

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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.