Home / 209,113.83-313,828.47-96,872.76

Finding the Fourth Proportional to 209,113.83, 313,828.47 and 96,872.76

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Solution

The fourth proportional to 209,113.83, 313,828.47 and 96,872.76 is: 145,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,113.83 : 313,828.47 = 96,872.76 : x
  2. Step 2: Convert to fraction form
    209,113.83/313,828.47 = 96,872.76/x
  3. Step 3: Cross multiply
    209,113.83x = 313,828.47 × 96,872.76
  4. Step 4: Simplify right side
    209,113.83x = 30,401,430,055.48
  5. Step 5: Solve for x
    x = 30,401,430,055.48/209,113.83
  6. Step 6: Final answer
    x = 145,382.21

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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.