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Finding the Fourth Proportional to 108,011.54, 161,800.24 and 53,812.85

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Solution

The fourth proportional to 108,011.54, 161,800.24 and 53,812.85 is: 80,611.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,011.54 : 161,800.24 = 53,812.85 : x
  2. Step 2: Convert to fraction form
    108,011.54/161,800.24 = 53,812.85/x
  3. Step 3: Cross multiply
    108,011.54x = 161,800.24 × 53,812.85
  4. Step 4: Simplify right side
    108,011.54x = 8,706,932,045.08
  5. Step 5: Solve for x
    x = 8,706,932,045.08/108,011.54
  6. Step 6: Final answer
    x = 80,611.13

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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.