Home / 212,229.75-292,918.65-121,646.43

Finding the Fourth Proportional to 212,229.75, 292,918.65 and 121,646.43

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Solution

The fourth proportional to 212,229.75, 292,918.65 and 121,646.43 is: 167,895.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,229.75 : 292,918.65 = 121,646.43 : x
  2. Step 2: Convert to fraction form
    212,229.75/292,918.65 = 121,646.43/x
  3. Step 3: Cross multiply
    212,229.75x = 292,918.65 × 121,646.43
  4. Step 4: Simplify right side
    212,229.75x = 35,632,508,052.92
  5. Step 5: Solve for x
    x = 35,632,508,052.92/212,229.75
  6. Step 6: Final answer
    x = 167,895.91

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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.