Home / 212,277.12-292,984.32-121,693.92

Finding the Fourth Proportional to 212,277.12, 292,984.32 and 121,693.92

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Solution

The fourth proportional to 212,277.12, 292,984.32 and 121,693.92 is: 167,961.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,277.12 : 292,984.32 = 121,693.92 : x
  2. Step 2: Convert to fraction form
    212,277.12/292,984.32 = 121,693.92/x
  3. Step 3: Cross multiply
    212,277.12x = 292,984.32 × 121,693.92
  4. Step 4: Simplify right side
    212,277.12x = 35,654,410,399.33
  5. Step 5: Solve for x
    x = 35,654,410,399.33/212,277.12
  6. Step 6: Final answer
    x = 167,961.63

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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.