Home / 108,825.53-163,139.87-38,688.44

Finding the Fourth Proportional to 108,825.53, 163,139.87 and 38,688.44

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Solution

The fourth proportional to 108,825.53, 163,139.87 and 38,688.44 is: 57,997.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,825.53 : 163,139.87 = 38,688.44 : x
  2. Step 2: Convert to fraction form
    108,825.53/163,139.87 = 38,688.44/x
  3. Step 3: Cross multiply
    108,825.53x = 163,139.87 × 38,688.44
  4. Step 4: Simplify right side
    108,825.53x = 6,311,626,353.12
  5. Step 5: Solve for x
    x = 6,311,626,353.12/108,825.53
  6. Step 6: Final answer
    x = 57,997.67

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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.