Home / 212,391.27-293,066.37-121,729.77

Finding the Fourth Proportional to 212,391.27, 293,066.37 and 121,729.77

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Solution

The fourth proportional to 212,391.27, 293,066.37 and 121,729.77 is: 167,967.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,391.27 : 293,066.37 = 121,729.77 : x
  2. Step 2: Convert to fraction form
    212,391.27/293,066.37 = 121,729.77/x
  3. Step 3: Cross multiply
    212,391.27x = 293,066.37 × 121,729.77
  4. Step 4: Simplify right side
    212,391.27x = 35,674,901,814.83
  5. Step 5: Solve for x
    x = 35,674,901,814.83/212,391.27
  6. Step 6: Final answer
    x = 167,967.84

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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.