Home / 159,540.72-220,166.24-86,943.63

Finding the Fourth Proportional to 159,540.72, 220,166.24 and 86,943.63

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Solution

The fourth proportional to 159,540.72, 220,166.24 and 86,943.63 is: 119,982.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,540.72 : 220,166.24 = 86,943.63 : x
  2. Step 2: Convert to fraction form
    159,540.72/220,166.24 = 86,943.63/x
  3. Step 3: Cross multiply
    159,540.72x = 220,166.24 × 86,943.63
  4. Step 4: Simplify right side
    159,540.72x = 19,142,052,499.96
  5. Step 5: Solve for x
    x = 19,142,052,499.96/159,540.72
  6. Step 6: Final answer
    x = 119,982.24

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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.