Home / 212,121.38-292,727.22-121,506.68

Finding the Fourth Proportional to 212,121.38, 292,727.22 and 121,506.68

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Solution

The fourth proportional to 212,121.38, 292,727.22 and 121,506.68 is: 167,679.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,121.38 : 292,727.22 = 121,506.68 : x
  2. Step 2: Convert to fraction form
    212,121.38/292,727.22 = 121,506.68/x
  3. Step 3: Cross multiply
    212,121.38x = 292,727.22 × 121,506.68
  4. Step 4: Simplify right side
    212,121.38x = 35,568,312,924.00
  5. Step 5: Solve for x
    x = 35,568,312,924.00/212,121.38
  6. Step 6: Final answer
    x = 167,679.05

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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.