Home / 154,029.53-212,558.41-86,047.48

Finding the Fourth Proportional to 154,029.53, 212,558.41 and 86,047.48

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Solution

The fourth proportional to 154,029.53, 212,558.41 and 86,047.48 is: 118,744.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,029.53 : 212,558.41 = 86,047.48 : x
  2. Step 2: Convert to fraction form
    154,029.53/212,558.41 = 86,047.48/x
  3. Step 3: Cross multiply
    154,029.53x = 212,558.41 × 86,047.48
  4. Step 4: Simplify right side
    154,029.53x = 18,290,115,906.56
  5. Step 5: Solve for x
    x = 18,290,115,906.56/154,029.53
  6. Step 6: Final answer
    x = 118,744.21

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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.