Home / 212,816.62-293,686.96-122,178.46

Finding the Fourth Proportional to 212,816.62, 293,686.96 and 122,178.46

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Solution

The fourth proportional to 212,816.62, 293,686.96 and 122,178.46 is: 168,606.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,816.62 : 293,686.96 = 122,178.46 : x
  2. Step 2: Convert to fraction form
    212,816.62/293,686.96 = 122,178.46/x
  3. Step 3: Cross multiply
    212,816.62x = 293,686.96 × 122,178.46
  4. Step 4: Simplify right side
    212,816.62x = 35,882,220,494.88
  5. Step 5: Solve for x
    x = 35,882,220,494.88/212,816.62
  6. Step 6: Final answer
    x = 168,606.29

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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.