Home / 238,539.85-329,185.71-131,120.89

Finding the Fourth Proportional to 238,539.85, 329,185.71 and 131,120.89

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Solution

The fourth proportional to 238,539.85, 329,185.71 and 131,120.89 is: 180,947.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,539.85 : 329,185.71 = 131,120.89 : x
  2. Step 2: Convert to fraction form
    238,539.85/329,185.71 = 131,120.89/x
  3. Step 3: Cross multiply
    238,539.85x = 329,185.71 × 131,120.89
  4. Step 4: Simplify right side
    238,539.85x = 43,163,122,119.72
  5. Step 5: Solve for x
    x = 43,163,122,119.72/238,539.85
  6. Step 6: Final answer
    x = 180,947.22

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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.