Home / 154,144.92-212,717.28-86,163.24

Finding the Fourth Proportional to 154,144.92, 212,717.28 and 86,163.24

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Solution

The fourth proportional to 154,144.92, 212,717.28 and 86,163.24 is: 118,903.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,144.92 : 212,717.28 = 86,163.24 : x
  2. Step 2: Convert to fraction form
    154,144.92/212,717.28 = 86,163.24/x
  3. Step 3: Cross multiply
    154,144.92x = 212,717.28 × 86,163.24
  4. Step 4: Simplify right side
    154,144.92x = 18,328,410,048.79
  5. Step 5: Solve for x
    x = 18,328,410,048.79/154,144.92
  6. Step 6: Final answer
    x = 118,903.76

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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.