Home / 108,476.15-162,550.20-91,745.60

Finding the Fourth Proportional to 108,476.15, 162,550.20 and 91,745.60

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Solution

The fourth proportional to 108,476.15, 162,550.20 and 91,745.60 is: 137,479.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,476.15 : 162,550.20 = 91,745.60 : x
  2. Step 2: Convert to fraction form
    108,476.15/162,550.20 = 91,745.60/x
  3. Step 3: Cross multiply
    108,476.15x = 162,550.20 × 91,745.60
  4. Step 4: Simplify right side
    108,476.15x = 14,913,265,629.12
  5. Step 5: Solve for x
    x = 14,913,265,629.12/108,476.15
  6. Step 6: Final answer
    x = 137,479.67

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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.