Home / 212,625.66-293,403.22-121,989.09

Finding the Fourth Proportional to 212,625.66, 293,403.22 and 121,989.09

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Solution

The fourth proportional to 212,625.66, 293,403.22 and 121,989.09 is: 168,333.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,625.66 : 293,403.22 = 121,989.09 : x
  2. Step 2: Convert to fraction form
    212,625.66/293,403.22 = 121,989.09/x
  3. Step 3: Cross multiply
    212,625.66x = 293,403.22 × 121,989.09
  4. Step 4: Simplify right side
    212,625.66x = 35,791,991,505.90
  5. Step 5: Solve for x
    x = 35,791,991,505.90/212,625.66
  6. Step 6: Final answer
    x = 168,333.36

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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.