Home / 211,029.67-291,248.67-120,364.85

Finding the Fourth Proportional to 211,029.67, 291,248.67 and 120,364.85

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Solution

The fourth proportional to 211,029.67, 291,248.67 and 120,364.85 is: 166,119.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,029.67 : 291,248.67 = 120,364.85 : x
  2. Step 2: Convert to fraction form
    211,029.67/291,248.67 = 120,364.85/x
  3. Step 3: Cross multiply
    211,029.67x = 291,248.67 × 120,364.85
  4. Step 4: Simplify right side
    211,029.67x = 35,056,102,477.25
  5. Step 5: Solve for x
    x = 35,056,102,477.25/211,029.67
  6. Step 6: Final answer
    x = 166,119.31

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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.