Home / 212,143.22-292,674.14-121,450.30

Finding the Fourth Proportional to 212,143.22, 292,674.14 and 121,450.30

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Solution

The fourth proportional to 212,143.22, 292,674.14 and 121,450.30 is: 167,553.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,143.22 : 292,674.14 = 121,450.30 : x
  2. Step 2: Convert to fraction form
    212,143.22/292,674.14 = 121,450.30/x
  3. Step 3: Cross multiply
    212,143.22x = 292,674.14 × 121,450.30
  4. Step 4: Simplify right side
    212,143.22x = 35,545,361,221.74
  5. Step 5: Solve for x
    x = 35,545,361,221.74/212,143.22
  6. Step 6: Final answer
    x = 167,553.61

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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.