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Finding the Fourth Proportional to 159,599.33, 220,244.69 and 87,977.81

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Solution

The fourth proportional to 159,599.33, 220,244.69 and 87,977.81 is: 121,408.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,599.33 : 220,244.69 = 87,977.81 : x
  2. Step 2: Convert to fraction form
    159,599.33/220,244.69 = 87,977.81/x
  3. Step 3: Cross multiply
    159,599.33x = 220,244.69 × 87,977.81
  4. Step 4: Simplify right side
    159,599.33x = 19,376,643,949.22
  5. Step 5: Solve for x
    x = 19,376,643,949.22/159,599.33
  6. Step 6: Final answer
    x = 121,408.06

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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.