Home / 154,153.32-212,704.34-86,148.56

Finding the Fourth Proportional to 154,153.32, 212,704.34 and 86,148.56

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Solution

The fourth proportional to 154,153.32, 212,704.34 and 86,148.56 is: 118,869.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,153.32 : 212,704.34 = 86,148.56 : x
  2. Step 2: Convert to fraction form
    154,153.32/212,704.34 = 86,148.56/x
  3. Step 3: Cross multiply
    154,153.32x = 212,704.34 × 86,148.56
  4. Step 4: Simplify right side
    154,153.32x = 18,324,171,102.49
  5. Step 5: Solve for x
    x = 18,324,171,102.49/154,153.32
  6. Step 6: Final answer
    x = 118,869.78

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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.