Home / 112,840.44-155,683.20-66,903.72

Finding the Fourth Proportional to 112,840.44, 155,683.20 and 66,903.72

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Solution

The fourth proportional to 112,840.44, 155,683.20 and 66,903.72 is: 92,305.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,840.44 : 155,683.20 = 66,903.72 : x
  2. Step 2: Convert to fraction form
    112,840.44/155,683.20 = 66,903.72/x
  3. Step 3: Cross multiply
    112,840.44x = 155,683.20 × 66,903.72
  4. Step 4: Simplify right side
    112,840.44x = 10,415,785,221.50
  5. Step 5: Solve for x
    x = 10,415,785,221.50/112,840.44
  6. Step 6: Final answer
    x = 92,305.43

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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.