Home / 115,822.54-159,835.72-65,520.46

Finding the Fourth Proportional to 115,822.54, 159,835.72 and 65,520.46

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Solution

The fourth proportional to 115,822.54, 159,835.72 and 65,520.46 is: 90,418.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,822.54 : 159,835.72 = 65,520.46 : x
  2. Step 2: Convert to fraction form
    115,822.54/159,835.72 = 65,520.46/x
  3. Step 3: Cross multiply
    115,822.54x = 159,835.72 × 65,520.46
  4. Step 4: Simplify right side
    115,822.54x = 10,472,509,898.83
  5. Step 5: Solve for x
    x = 10,472,509,898.83/115,822.54
  6. Step 6: Final answer
    x = 90,418.58

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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.