Home / 209,794.22-314,722.29-76,643.36

Finding the Fourth Proportional to 209,794.22, 314,722.29 and 76,643.36

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Solution

The fourth proportional to 209,794.22, 314,722.29 and 76,643.36 is: 114,976.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,794.22 : 314,722.29 = 76,643.36 : x
  2. Step 2: Convert to fraction form
    209,794.22/314,722.29 = 76,643.36/x
  3. Step 3: Cross multiply
    209,794.22x = 314,722.29 × 76,643.36
  4. Step 4: Simplify right side
    209,794.22x = 24,121,373,772.49
  5. Step 5: Solve for x
    x = 24,121,373,772.49/209,794.22
  6. Step 6: Final answer
    x = 114,976.35

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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.