Home / 212,416.11-293,099.93-121,755.39

Finding the Fourth Proportional to 212,416.11, 293,099.93 and 121,755.39

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Solution

The fourth proportional to 212,416.11, 293,099.93 and 121,755.39 is: 168,002.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,416.11 : 293,099.93 = 121,755.39 : x
  2. Step 2: Convert to fraction form
    212,416.11/293,099.93 = 121,755.39/x
  3. Step 3: Cross multiply
    212,416.11x = 293,099.93 × 121,755.39
  4. Step 4: Simplify right side
    212,416.11x = 35,686,496,286.12
  5. Step 5: Solve for x
    x = 35,686,496,286.12/212,416.11
  6. Step 6: Final answer
    x = 168,002.78

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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.