Home / 112,781.22-155,639.34-61,794.04

Finding the Fourth Proportional to 112,781.22, 155,639.34 and 61,794.04

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Solution

The fourth proportional to 112,781.22, 155,639.34 and 61,794.04 is: 85,276.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,781.22 : 155,639.34 = 61,794.04 : x
  2. Step 2: Convert to fraction form
    112,781.22/155,639.34 = 61,794.04/x
  3. Step 3: Cross multiply
    112,781.22x = 155,639.34 × 61,794.04
  4. Step 4: Simplify right side
    112,781.22x = 9,617,583,601.53
  5. Step 5: Solve for x
    x = 9,617,583,601.53/112,781.22
  6. Step 6: Final answer
    x = 85,276.46

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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.