Home / 209,914.49-314,873.15-76,739.96

Finding the Fourth Proportional to 209,914.49, 314,873.15 and 76,739.96

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Solution

The fourth proportional to 209,914.49, 314,873.15 and 76,739.96 is: 115,110.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,914.49 : 314,873.15 = 76,739.96 : x
  2. Step 2: Convert to fraction form
    209,914.49/314,873.15 = 76,739.96/x
  3. Step 3: Cross multiply
    209,914.49x = 314,873.15 × 76,739.96
  4. Step 4: Simplify right side
    209,914.49x = 24,163,352,936.07
  5. Step 5: Solve for x
    x = 24,163,352,936.07/209,914.49
  6. Step 6: Final answer
    x = 115,110.46

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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.