Home / 209,712.26-314,703.66-76,581.38

Finding the Fourth Proportional to 209,712.26, 314,703.66 and 76,581.38

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Solution

The fourth proportional to 209,712.26, 314,703.66 and 76,581.38 is: 114,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,712.26 : 314,703.66 = 76,581.38 : x
  2. Step 2: Convert to fraction form
    209,712.26/314,703.66 = 76,581.38/x
  3. Step 3: Cross multiply
    209,712.26x = 314,703.66 × 76,581.38
  4. Step 4: Simplify right side
    209,712.26x = 24,100,440,573.85
  5. Step 5: Solve for x
    x = 24,100,440,573.85/209,712.26
  6. Step 6: Final answer
    x = 114,921.47

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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.