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Finding the Fourth Proportional to 159,450.60, 220,039.14 and 87,837.32

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Solution

The fourth proportional to 159,450.60, 220,039.14 and 87,837.32 is: 121,214.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,450.60 : 220,039.14 = 87,837.32 : x
  2. Step 2: Convert to fraction form
    159,450.60/220,039.14 = 87,837.32/x
  3. Step 3: Cross multiply
    159,450.60x = 220,039.14 × 87,837.32
  4. Step 4: Simplify right side
    159,450.60x = 19,327,648,352.70
  5. Step 5: Solve for x
    x = 19,327,648,352.70/159,450.60
  6. Step 6: Final answer
    x = 121,214.02

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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.