Home / 211,028.67-291,247.29-120,363.85

Finding the Fourth Proportional to 211,028.67, 291,247.29 and 120,363.85

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Solution

The fourth proportional to 211,028.67, 291,247.29 and 120,363.85 is: 166,117.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,028.67 : 291,247.29 = 120,363.85 : x
  2. Step 2: Convert to fraction form
    211,028.67/291,247.29 = 120,363.85/x
  3. Step 3: Cross multiply
    211,028.67x = 291,247.29 × 120,363.85
  4. Step 4: Simplify right side
    211,028.67x = 35,055,645,126.47
  5. Step 5: Solve for x
    x = 35,055,645,126.47/211,028.67
  6. Step 6: Final answer
    x = 166,117.93

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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.