Home / 212,229.28-292,917.96-121,645.92

Finding the Fourth Proportional to 212,229.28, 292,917.96 and 121,645.92

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Solution

The fourth proportional to 212,229.28, 292,917.96 and 121,645.92 is: 167,895.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,229.28 : 292,917.96 = 121,645.92 : x
  2. Step 2: Convert to fraction form
    212,229.28/292,917.96 = 121,645.92/x
  3. Step 3: Cross multiply
    212,229.28x = 292,917.96 × 121,645.92
  4. Step 4: Simplify right side
    212,229.28x = 35,632,274,728.72
  5. Step 5: Solve for x
    x = 35,632,274,728.72/212,229.28
  6. Step 6: Final answer
    x = 167,895.19

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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.