Home / 154,039.73-212,553.79-86,048.29

Finding the Fourth Proportional to 154,039.73, 212,553.79 and 86,048.29

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Solution

The fourth proportional to 154,039.73, 212,553.79 and 86,048.29 is: 118,734.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,039.73 : 212,553.79 = 86,048.29 : x
  2. Step 2: Convert to fraction form
    154,039.73/212,553.79 = 86,048.29/x
  3. Step 3: Cross multiply
    154,039.73x = 212,553.79 × 86,048.29
  4. Step 4: Simplify right side
    154,039.73x = 18,289,890,213.09
  5. Step 5: Solve for x
    x = 18,289,890,213.09/154,039.73
  6. Step 6: Final answer
    x = 118,734.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.