Home / 209,844.36-314,859.42-109,980.63

Finding the Fourth Proportional to 209,844.36, 314,859.42 and 109,980.63

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Solution

The fourth proportional to 209,844.36, 314,859.42 and 109,980.63 is: 165,019.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,844.36 : 314,859.42 = 109,980.63 : x
  2. Step 2: Convert to fraction form
    209,844.36/314,859.42 = 109,980.63/x
  3. Step 3: Cross multiply
    209,844.36x = 314,859.42 × 109,980.63
  4. Step 4: Simplify right side
    209,844.36x = 34,628,437,373.03
  5. Step 5: Solve for x
    x = 34,628,437,373.03/209,844.36
  6. Step 6: Final answer
    x = 165,019.62

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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.