Home / 112,318.58-155,168.73-73,648.26

Finding the Fourth Proportional to 112,318.58, 155,168.73 and 73,648.26

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Solution

The fourth proportional to 112,318.58, 155,168.73 and 73,648.26 is: 101,745.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,318.58 : 155,168.73 = 73,648.26 : x
  2. Step 2: Convert to fraction form
    112,318.58/155,168.73 = 73,648.26/x
  3. Step 3: Cross multiply
    112,318.58x = 155,168.73 × 73,648.26
  4. Step 4: Simplify right side
    112,318.58x = 11,427,906,970.91
  5. Step 5: Solve for x
    x = 11,427,906,970.91/112,318.58
  6. Step 6: Final answer
    x = 101,745.47

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1.5x scale

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.