Home / 108,078.28-149,147.44-62,767.40

Finding the Fourth Proportional to 108,078.28, 149,147.44 and 62,767.40

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Solution

The fourth proportional to 108,078.28, 149,147.44 and 62,767.40 is: 86,618.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,078.28 : 149,147.44 = 62,767.40 : x
  2. Step 2: Convert to fraction form
    108,078.28/149,147.44 = 62,767.40/x
  3. Step 3: Cross multiply
    108,078.28x = 149,147.44 × 62,767.40
  4. Step 4: Simplify right side
    108,078.28x = 9,361,597,025.46
  5. Step 5: Solve for x
    x = 9,361,597,025.46/108,078.28
  6. Step 6: Final answer
    x = 86,618.67

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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.