Home / 112,813.12-155,682.24-62,512

Finding the Fourth Proportional to 112,813.12, 155,682.24 and 62,512

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Solution

The fourth proportional to 112,813.12, 155,682.24 and 62,512 is: 86,266.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,813.12 : 155,682.24 = 62,512 : x
  2. Step 2: Convert to fraction form
    112,813.12/155,682.24 = 62,512/x
  3. Step 3: Cross multiply
    112,813.12x = 155,682.24 × 62,512
  4. Step 4: Simplify right side
    112,813.12x = 9,732,008,186.88
  5. Step 5: Solve for x
    x = 9,732,008,186.88/112,813.12
  6. Step 6: Final answer
    x = 86,266.63

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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.