Home / 211,977.87-292,528.56-121,333.38

Finding the Fourth Proportional to 211,977.87, 292,528.56 and 121,333.38

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Solution

The fourth proportional to 211,977.87, 292,528.56 and 121,333.38 is: 167,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,977.87 : 292,528.56 = 121,333.38 : x
  2. Step 2: Convert to fraction form
    211,977.87/292,528.56 = 121,333.38/x
  3. Step 3: Cross multiply
    211,977.87x = 292,528.56 × 121,333.38
  4. Step 4: Simplify right side
    211,977.87x = 35,493,478,931.33
  5. Step 5: Solve for x
    x = 35,493,478,931.33/211,977.87
  6. Step 6: Final answer
    x = 167,439.55

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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.