Home / 159,977.31-220,749.81-88,353.06

Finding the Fourth Proportional to 159,977.31, 220,749.81 and 88,353.06

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Solution

The fourth proportional to 159,977.31, 220,749.81 and 88,353.06 is: 121,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,977.31 : 220,749.81 = 88,353.06 : x
  2. Step 2: Convert to fraction form
    159,977.31/220,749.81 = 88,353.06/x
  3. Step 3: Cross multiply
    159,977.31x = 220,749.81 × 88,353.06
  4. Step 4: Simplify right side
    159,977.31x = 19,503,921,290.50
  5. Step 5: Solve for x
    x = 19,503,921,290.50/159,977.31
  6. Step 6: Final answer
    x = 121,916.80

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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.