Home / 211,758.15-292,142.91-121,065.39

Finding the Fourth Proportional to 211,758.15, 292,142.91 and 121,065.39

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Solution

The fourth proportional to 211,758.15, 292,142.91 and 121,065.39 is: 167,022.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,758.15 : 292,142.91 = 121,065.39 : x
  2. Step 2: Convert to fraction form
    211,758.15/292,142.91 = 121,065.39/x
  3. Step 3: Cross multiply
    211,758.15x = 292,142.91 × 121,065.39
  4. Step 4: Simplify right side
    211,758.15x = 35,368,395,334.88
  5. Step 5: Solve for x
    x = 35,368,395,334.88/211,758.15
  6. Step 6: Final answer
    x = 167,022.59

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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.