Home / 143,014.44-197,365.20-86,414.88

Finding the Fourth Proportional to 143,014.44, 197,365.20 and 86,414.88

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Solution

The fourth proportional to 143,014.44, 197,365.20 and 86,414.88 is: 119,255.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,014.44 : 197,365.20 = 86,414.88 : x
  2. Step 2: Convert to fraction form
    143,014.44/197,365.20 = 86,414.88/x
  3. Step 3: Cross multiply
    143,014.44x = 197,365.20 × 86,414.88
  4. Step 4: Simplify right side
    143,014.44x = 17,055,290,074.18
  5. Step 5: Solve for x
    x = 17,055,290,074.18/143,014.44
  6. Step 6: Final answer
    x = 119,255.72

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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.