Home / 143,054.46-197,394.96-85,680.34

Finding the Fourth Proportional to 143,054.46, 197,394.96 and 85,680.34

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Solution

The fourth proportional to 143,054.46, 197,394.96 and 85,680.34 is: 118,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,054.46 : 197,394.96 = 85,680.34 : x
  2. Step 2: Convert to fraction form
    143,054.46/197,394.96 = 85,680.34/x
  3. Step 3: Cross multiply
    143,054.46x = 197,394.96 × 85,680.34
  4. Step 4: Simplify right side
    143,054.46x = 16,912,867,287.09
  5. Step 5: Solve for x
    x = 16,912,867,287.09/143,054.46
  6. Step 6: Final answer
    x = 118,226.77

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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.