Home / 190,137.44-262,389.73-105,254.51

Finding the Fourth Proportional to 190,137.44, 262,389.73 and 105,254.51

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Solution

The fourth proportional to 190,137.44, 262,389.73 and 105,254.51 is: 145,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,137.44 : 262,389.73 = 105,254.51 : x
  2. Step 2: Convert to fraction form
    190,137.44/262,389.73 = 105,254.51/x
  3. Step 3: Cross multiply
    190,137.44x = 262,389.73 × 105,254.51
  4. Step 4: Simplify right side
    190,137.44x = 27,617,700,885.10
  5. Step 5: Solve for x
    x = 27,617,700,885.10/190,137.44
  6. Step 6: Final answer
    x = 145,251.25

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1.5x scale

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.