Home / 189,981.75-262,152.14-105,087.27

Finding the Fourth Proportional to 189,981.75, 262,152.14 and 105,087.27

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Solution

The fourth proportional to 189,981.75, 262,152.14 and 105,087.27 is: 145,007.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,981.75 : 262,152.14 = 105,087.27 : x
  2. Step 2: Convert to fraction form
    189,981.75/262,152.14 = 105,087.27/x
  3. Step 3: Cross multiply
    189,981.75x = 262,152.14 × 105,087.27
  4. Step 4: Simplify right side
    189,981.75x = 27,548,852,191.82
  5. Step 5: Solve for x
    x = 27,548,852,191.82/189,981.75
  6. Step 6: Final answer
    x = 145,007.89

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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.