Home / 112,571.22-155,280.60-74,331.12

Finding the Fourth Proportional to 112,571.22, 155,280.60 and 74,331.12

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Solution

The fourth proportional to 112,571.22, 155,280.60 and 74,331.12 is: 102,532.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,571.22 : 155,280.60 = 74,331.12 : x
  2. Step 2: Convert to fraction form
    112,571.22/155,280.60 = 74,331.12/x
  3. Step 3: Cross multiply
    112,571.22x = 155,280.60 × 74,331.12
  4. Step 4: Simplify right side
    112,571.22x = 11,542,180,912.27
  5. Step 5: Solve for x
    x = 11,542,180,912.27/112,571.22
  6. Step 6: Final answer
    x = 102,532.25

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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.