Home / 106,979.16-160,462.26-28,091.64

Finding the Fourth Proportional to 106,979.16, 160,462.26 and 28,091.64

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Solution

The fourth proportional to 106,979.16, 160,462.26 and 28,091.64 is: 42,135.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,979.16 : 160,462.26 = 28,091.64 : x
  2. Step 2: Convert to fraction form
    106,979.16/160,462.26 = 28,091.64/x
  3. Step 3: Cross multiply
    106,979.16x = 160,462.26 × 28,091.64
  4. Step 4: Simplify right side
    106,979.16x = 4,507,648,041.51
  5. Step 5: Solve for x
    x = 4,507,648,041.51/106,979.16
  6. Step 6: Final answer
    x = 42,135.76

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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.