Home / 211,028.52-291,247.10-120,363.72

Finding the Fourth Proportional to 211,028.52, 291,247.10 and 120,363.72

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Solution

The fourth proportional to 211,028.52, 291,247.10 and 120,363.72 is: 166,117.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,028.52 : 291,247.10 = 120,363.72 : x
  2. Step 2: Convert to fraction form
    211,028.52/291,247.10 = 120,363.72/x
  3. Step 3: Cross multiply
    211,028.52x = 291,247.10 × 120,363.72
  4. Step 4: Simplify right side
    211,028.52x = 35,055,584,395.21
  5. Step 5: Solve for x
    x = 35,055,584,395.21/211,028.52
  6. Step 6: Final answer
    x = 166,117.76

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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.