Home / 190,643.69-263,088.61-105,760.76

Finding the Fourth Proportional to 190,643.69, 263,088.61 and 105,760.76

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Solution

The fourth proportional to 190,643.69, 263,088.61 and 105,760.76 is: 145,950.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,643.69 : 263,088.61 = 105,760.76 : x
  2. Step 2: Convert to fraction form
    190,643.69/263,088.61 = 105,760.76/x
  3. Step 3: Cross multiply
    190,643.69x = 263,088.61 × 105,760.76
  4. Step 4: Simplify right side
    190,643.69x = 27,824,449,761.10
  5. Step 5: Solve for x
    x = 27,824,449,761.10/190,643.69
  6. Step 6: Final answer
    x = 145,950.01

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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.