Home / 106,965.76-160,464.48-100,405.12

Finding the Fourth Proportional to 106,965.76, 160,464.48 and 100,405.12

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Solution

The fourth proportional to 106,965.76, 160,464.48 and 100,405.12 is: 150,622.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,965.76 : 160,464.48 = 100,405.12 : x
  2. Step 2: Convert to fraction form
    106,965.76/160,464.48 = 100,405.12/x
  3. Step 3: Cross multiply
    106,965.76x = 160,464.48 × 100,405.12
  4. Step 4: Simplify right side
    106,965.76x = 16,111,455,370.14
  5. Step 5: Solve for x
    x = 16,111,455,370.14/106,965.76
  6. Step 6: Final answer
    x = 150,622.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.