Home / 445,916.11-668,850.30-157,707.78

Finding the Fourth Proportional to 445,916.11, 668,850.30 and 157,707.78

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Solution

The fourth proportional to 445,916.11, 668,850.30 and 157,707.78 is: 236,553.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,916.11 : 668,850.30 = 157,707.78 : x
  2. Step 2: Convert to fraction form
    445,916.11/668,850.30 = 157,707.78/x
  3. Step 3: Cross multiply
    445,916.11x = 668,850.30 × 157,707.78
  4. Step 4: Simplify right side
    445,916.11x = 105,482,895,965.33
  5. Step 5: Solve for x
    x = 105,482,895,965.33/445,916.11
  6. Step 6: Final answer
    x = 236,553.23

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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.