Home / 190,585.20-262,989-105,700.44

Finding the Fourth Proportional to 190,585.20, 262,989 and 105,700.44

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Solution

The fourth proportional to 190,585.20, 262,989 and 105,700.44 is: 145,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,585.20 : 262,989 = 105,700.44 : x
  2. Step 2: Convert to fraction form
    190,585.20/262,989 = 105,700.44/x
  3. Step 3: Cross multiply
    190,585.20x = 262,989 × 105,700.44
  4. Step 4: Simplify right side
    190,585.20x = 27,798,053,015.16
  5. Step 5: Solve for x
    x = 27,798,053,015.16/190,585.20
  6. Step 6: Final answer
    x = 145,856.30

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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.