Home / 115,949.45-160,007.42-64,964.32

Finding the Fourth Proportional to 115,949.45, 160,007.42 and 64,964.32

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Solution

The fourth proportional to 115,949.45, 160,007.42 and 64,964.32 is: 89,649.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,949.45 : 160,007.42 = 64,964.32 : x
  2. Step 2: Convert to fraction form
    115,949.45/160,007.42 = 64,964.32/x
  3. Step 3: Cross multiply
    115,949.45x = 160,007.42 × 64,964.32
  4. Step 4: Simplify right side
    115,949.45x = 10,394,772,997.65
  5. Step 5: Solve for x
    x = 10,394,772,997.65/115,949.45
  6. Step 6: Final answer
    x = 89,649.18

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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.