Home / 190,975.61-263,447.52-129,724.95

Finding the Fourth Proportional to 190,975.61, 263,447.52 and 129,724.95

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Solution

The fourth proportional to 190,975.61, 263,447.52 and 129,724.95 is: 178,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,975.61 : 263,447.52 = 129,724.95 : x
  2. Step 2: Convert to fraction form
    190,975.61/263,447.52 = 129,724.95/x
  3. Step 3: Cross multiply
    190,975.61x = 263,447.52 × 129,724.95
  4. Step 4: Simplify right side
    190,975.61x = 34,175,716,861.08
  5. Step 5: Solve for x
    x = 34,175,716,861.08/190,975.61
  6. Step 6: Final answer
    x = 178,953.30

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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.