Home / 159,455.52-220,040.46-87,834

Finding the Fourth Proportional to 159,455.52, 220,040.46 and 87,834

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Solution

The fourth proportional to 159,455.52, 220,040.46 and 87,834 is: 121,206.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,455.52 : 220,040.46 = 87,834 : x
  2. Step 2: Convert to fraction form
    159,455.52/220,040.46 = 87,834/x
  3. Step 3: Cross multiply
    159,455.52x = 220,040.46 × 87,834
  4. Step 4: Simplify right side
    159,455.52x = 19,327,033,763.64
  5. Step 5: Solve for x
    x = 19,327,033,763.64/159,455.52
  6. Step 6: Final answer
    x = 121,206.43

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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.