Home / 101,917.55-140,659.18-61,631.60

Finding the Fourth Proportional to 101,917.55, 140,659.18 and 61,631.60

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Solution

The fourth proportional to 101,917.55, 140,659.18 and 61,631.60 is: 85,059.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,917.55 : 140,659.18 = 61,631.60 : x
  2. Step 2: Convert to fraction form
    101,917.55/140,659.18 = 61,631.60/x
  3. Step 3: Cross multiply
    101,917.55x = 140,659.18 × 61,631.60
  4. Step 4: Simplify right side
    101,917.55x = 8,669,049,460.71
  5. Step 5: Solve for x
    x = 8,669,049,460.71/101,917.55
  6. Step 6: Final answer
    x = 85,059.44

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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.