Home / 189,146.16-261,143.28-117,623.52

Finding the Fourth Proportional to 189,146.16, 261,143.28 and 117,623.52

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Solution

The fourth proportional to 189,146.16, 261,143.28 and 117,623.52 is: 162,396.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,146.16 : 261,143.28 = 117,623.52 : x
  2. Step 2: Convert to fraction form
    189,146.16/261,143.28 = 117,623.52/x
  3. Step 3: Cross multiply
    189,146.16x = 261,143.28 × 117,623.52
  4. Step 4: Simplify right side
    189,146.16x = 30,716,591,817.95
  5. Step 5: Solve for x
    x = 30,716,591,817.95/189,146.16
  6. Step 6: Final answer
    x = 162,396.06

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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.