Home / 190,400.63-262,752.86-105,523.16

Finding the Fourth Proportional to 190,400.63, 262,752.86 and 105,523.16

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Solution

The fourth proportional to 190,400.63, 262,752.86 and 105,523.16 is: 145,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,400.63 : 262,752.86 = 105,523.16 : x
  2. Step 2: Convert to fraction form
    190,400.63/262,752.86 = 105,523.16/x
  3. Step 3: Cross multiply
    190,400.63x = 262,752.86 × 105,523.16
  4. Step 4: Simplify right side
    190,400.63x = 27,726,511,036.28
  5. Step 5: Solve for x
    x = 27,726,511,036.28/190,400.63
  6. Step 6: Final answer
    x = 145,621.95

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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.