Home / 112,464.45-155,205.11-61,480.57

Finding the Fourth Proportional to 112,464.45, 155,205.11 and 61,480.57

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Solution

The fourth proportional to 112,464.45, 155,205.11 and 61,480.57 is: 84,845.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,464.45 : 155,205.11 = 61,480.57 : x
  2. Step 2: Convert to fraction form
    112,464.45/155,205.11 = 61,480.57/x
  3. Step 3: Cross multiply
    112,464.45x = 155,205.11 × 61,480.57
  4. Step 4: Simplify right side
    112,464.45x = 9,542,098,686.41
  5. Step 5: Solve for x
    x = 9,542,098,686.41/112,464.45
  6. Step 6: Final answer
    x = 84,845.47

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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.