Home / 209,133.36-313,674.12-123,795

Finding the Fourth Proportional to 209,133.36, 313,674.12 and 123,795

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Solution

The fourth proportional to 209,133.36, 313,674.12 and 123,795 is: 185,677.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,133.36 : 313,674.12 = 123,795 : x
  2. Step 2: Convert to fraction form
    209,133.36/313,674.12 = 123,795/x
  3. Step 3: Cross multiply
    209,133.36x = 313,674.12 × 123,795
  4. Step 4: Simplify right side
    209,133.36x = 38,831,287,685.40
  5. Step 5: Solve for x
    x = 38,831,287,685.40/209,133.36
  6. Step 6: Final answer
    x = 185,677.16

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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.