Home / 212,520.30-293,268.54-121,811.22

Finding the Fourth Proportional to 212,520.30, 293,268.54 and 121,811.22

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Solution

The fourth proportional to 212,520.30, 293,268.54 and 121,811.22 is: 168,094.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,520.30 : 293,268.54 = 121,811.22 : x
  2. Step 2: Convert to fraction form
    212,520.30/293,268.54 = 121,811.22/x
  3. Step 3: Cross multiply
    212,520.30x = 293,268.54 × 121,811.22
  4. Step 4: Simplify right side
    212,520.30x = 35,723,398,645.02
  5. Step 5: Solve for x
    x = 35,723,398,645.02/212,520.30
  6. Step 6: Final answer
    x = 168,094.05

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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.