Home / 211,979.80-292,548.42-121,364.20

Finding the Fourth Proportional to 211,979.80, 292,548.42 and 121,364.20

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Solution

The fourth proportional to 211,979.80, 292,548.42 and 121,364.20 is: 167,491.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,979.80 : 292,548.42 = 121,364.20 : x
  2. Step 2: Convert to fraction form
    211,979.80/292,548.42 = 121,364.20/x
  3. Step 3: Cross multiply
    211,979.80x = 292,548.42 × 121,364.20
  4. Step 4: Simplify right side
    211,979.80x = 35,504,904,954.56
  5. Step 5: Solve for x
    x = 35,504,904,954.56/211,979.80
  6. Step 6: Final answer
    x = 167,491.93

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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.