Home / 108,511.60-162,767.40-91,015.60

Finding the Fourth Proportional to 108,511.60, 162,767.40 and 91,015.60

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Solution

The fourth proportional to 108,511.60, 162,767.40 and 91,015.60 is: 136,523.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,511.60 : 162,767.40 = 91,015.60 : x
  2. Step 2: Convert to fraction form
    108,511.60/162,767.40 = 91,015.60/x
  3. Step 3: Cross multiply
    108,511.60x = 162,767.40 × 91,015.60
  4. Step 4: Simplify right side
    108,511.60x = 14,814,372,571.44
  5. Step 5: Solve for x
    x = 14,814,372,571.44/108,511.60
  6. Step 6: Final answer
    x = 136,523.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.