Home / 189,173.87-261,013.52-124,635.95

Finding the Fourth Proportional to 189,173.87, 261,013.52 and 124,635.95

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Solution

The fourth proportional to 189,173.87, 261,013.52 and 124,635.95 is: 171,967.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,173.87 : 261,013.52 = 124,635.95 : x
  2. Step 2: Convert to fraction form
    189,173.87/261,013.52 = 124,635.95/x
  3. Step 3: Cross multiply
    189,173.87x = 261,013.52 × 124,635.95
  4. Step 4: Simplify right side
    189,173.87x = 32,531,668,028.04
  5. Step 5: Solve for x
    x = 32,531,668,028.04/189,173.87
  6. Step 6: Final answer
    x = 171,967.03

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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.