Home / 190,310.21-262,608.95-105,411.41

Finding the Fourth Proportional to 190,310.21, 262,608.95 and 105,411.41

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Solution

The fourth proportional to 190,310.21, 262,608.95 and 105,411.41 is: 145,457.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,310.21 : 262,608.95 = 105,411.41 : x
  2. Step 2: Convert to fraction form
    190,310.21/262,608.95 = 105,411.41/x
  3. Step 3: Cross multiply
    190,310.21x = 262,608.95 × 105,411.41
  4. Step 4: Simplify right side
    190,310.21x = 27,681,979,698.12
  5. Step 5: Solve for x
    x = 27,681,979,698.12/190,310.21
  6. Step 6: Final answer
    x = 145,457.14

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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.