Home / 143,187.92-197,620.89-103,034.60

Finding the Fourth Proportional to 143,187.92, 197,620.89 and 103,034.60

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Solution

The fourth proportional to 143,187.92, 197,620.89 and 103,034.60 is: 142,203.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,187.92 : 197,620.89 = 103,034.60 : x
  2. Step 2: Convert to fraction form
    143,187.92/197,620.89 = 103,034.60/x
  3. Step 3: Cross multiply
    143,187.92x = 197,620.89 × 103,034.60
  4. Step 4: Simplify right side
    143,187.92x = 20,361,789,352.79
  5. Step 5: Solve for x
    x = 20,361,789,352.79/143,187.92
  6. Step 6: Final answer
    x = 142,203.26

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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.