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Finding the Fourth Proportional to 159,443.44, 220,028.60 and 87,824.05

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Solution

The fourth proportional to 159,443.44, 220,028.60 and 87,824.05 is: 121,195.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,443.44 : 220,028.60 = 87,824.05 : x
  2. Step 2: Convert to fraction form
    159,443.44/220,028.60 = 87,824.05/x
  3. Step 3: Cross multiply
    159,443.44x = 220,028.60 × 87,824.05
  4. Step 4: Simplify right side
    159,443.44x = 19,323,802,437.32
  5. Step 5: Solve for x
    x = 19,323,802,437.32/159,443.44
  6. Step 6: Final answer
    x = 121,195.35

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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.