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Finding the Fourth Proportional to 117,099.54, 161,600.50 and 71,143.54

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Solution

The fourth proportional to 117,099.54, 161,600.50 and 71,143.54 is: 98,179.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,099.54 : 161,600.50 = 71,143.54 : x
  2. Step 2: Convert to fraction form
    117,099.54/161,600.50 = 71,143.54/x
  3. Step 3: Cross multiply
    117,099.54x = 161,600.50 × 71,143.54
  4. Step 4: Simplify right side
    117,099.54x = 11,496,831,635.77
  5. Step 5: Solve for x
    x = 11,496,831,635.77/117,099.54
  6. Step 6: Final answer
    x = 98,179.99

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1.5x scale

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.