Home / 159,436.44-220,023.96-87,818.76

Finding the Fourth Proportional to 159,436.44, 220,023.96 and 87,818.76

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Solution

The fourth proportional to 159,436.44, 220,023.96 and 87,818.76 is: 121,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,436.44 : 220,023.96 = 87,818.76 : x
  2. Step 2: Convert to fraction form
    159,436.44/220,023.96 = 87,818.76/x
  3. Step 3: Cross multiply
    159,436.44x = 220,023.96 × 87,818.76
  4. Step 4: Simplify right side
    159,436.44x = 19,322,231,337.49
  5. Step 5: Solve for x
    x = 19,322,231,337.49/159,436.44
  6. Step 6: Final answer
    x = 121,190.81

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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.