Home / 115,868.08-159,815.36-106,338.86

Finding the Fourth Proportional to 115,868.08, 159,815.36 and 106,338.86

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Solution

The fourth proportional to 115,868.08, 159,815.36 and 106,338.86 is: 146,671.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,868.08 : 159,815.36 = 106,338.86 : x
  2. Step 2: Convert to fraction form
    115,868.08/159,815.36 = 106,338.86/x
  3. Step 3: Cross multiply
    115,868.08x = 159,815.36 × 106,338.86
  4. Step 4: Simplify right side
    115,868.08x = 16,994,583,192.89
  5. Step 5: Solve for x
    x = 16,994,583,192.89/115,868.08
  6. Step 6: Final answer
    x = 146,671.83

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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.