Home / 159,905.48-220,669.80-88,285.56

Finding the Fourth Proportional to 159,905.48, 220,669.80 and 88,285.56

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Solution

The fourth proportional to 159,905.48, 220,669.80 and 88,285.56 is: 121,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,905.48 : 220,669.80 = 88,285.56 : x
  2. Step 2: Convert to fraction form
    159,905.48/220,669.80 = 88,285.56/x
  3. Step 3: Cross multiply
    159,905.48x = 220,669.80 × 88,285.56
  4. Step 4: Simplify right side
    159,905.48x = 19,481,956,868.09
  5. Step 5: Solve for x
    x = 19,481,956,868.09/159,905.48
  6. Step 6: Final answer
    x = 121,834.20

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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.