Home / 159,911.10-220,676.31-88,290.50

Finding the Fourth Proportional to 159,911.10, 220,676.31 and 88,290.50

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Solution

The fourth proportional to 159,911.10, 220,676.31 and 88,290.50 is: 121,840.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,911.10 : 220,676.31 = 88,290.50 : x
  2. Step 2: Convert to fraction form
    159,911.10/220,676.31 = 88,290.50/x
  3. Step 3: Cross multiply
    159,911.10x = 220,676.31 × 88,290.50
  4. Step 4: Simplify right side
    159,911.10x = 19,483,620,644.67
  5. Step 5: Solve for x
    x = 19,483,620,644.67/159,911.10
  6. Step 6: Final answer
    x = 121,840.33

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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.