Home / 189,186.40-261,083.54-112,695.06

Finding the Fourth Proportional to 189,186.40, 261,083.54 and 112,695.06

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Solution

The fourth proportional to 189,186.40, 261,083.54 and 112,695.06 is: 155,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,186.40 : 261,083.54 = 112,695.06 : x
  2. Step 2: Convert to fraction form
    189,186.40/261,083.54 = 112,695.06/x
  3. Step 3: Cross multiply
    189,186.40x = 261,083.54 × 112,695.06
  4. Step 4: Simplify right side
    189,186.40x = 29,422,823,336.42
  5. Step 5: Solve for x
    x = 29,422,823,336.42/189,186.40
  6. Step 6: Final answer
    x = 155,522.93

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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.