Home / 108,285.46-162,319.15-45,140.54

Finding the Fourth Proportional to 108,285.46, 162,319.15 and 45,140.54

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Solution

The fourth proportional to 108,285.46, 162,319.15 and 45,140.54 is: 67,665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,285.46 : 162,319.15 = 45,140.54 : x
  2. Step 2: Convert to fraction form
    108,285.46/162,319.15 = 45,140.54/x
  3. Step 3: Cross multiply
    108,285.46x = 162,319.15 × 45,140.54
  4. Step 4: Simplify right side
    108,285.46x = 7,327,174,083.34
  5. Step 5: Solve for x
    x = 7,327,174,083.34/108,285.46
  6. Step 6: Final answer
    x = 67,665.35

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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.