Home / 131,971.50-182,120.94-75,382.74

Finding the Fourth Proportional to 131,971.50, 182,120.94 and 75,382.74

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Solution

The fourth proportional to 131,971.50, 182,120.94 and 75,382.74 is: 104,028.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,971.50 : 182,120.94 = 75,382.74 : x
  2. Step 2: Convert to fraction form
    131,971.50/182,120.94 = 75,382.74/x
  3. Step 3: Cross multiply
    131,971.50x = 182,120.94 × 75,382.74
  4. Step 4: Simplify right side
    131,971.50x = 13,728,775,468.58
  5. Step 5: Solve for x
    x = 13,728,775,468.58/131,971.50
  6. Step 6: Final answer
    x = 104,028.34

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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.