Home / 190,919.40-263,497.50-137,381.64

Finding the Fourth Proportional to 190,919.40, 263,497.50 and 137,381.64

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Solution

The fourth proportional to 190,919.40, 263,497.50 and 137,381.64 is: 189,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,919.40 : 263,497.50 = 137,381.64 : x
  2. Step 2: Convert to fraction form
    190,919.40/263,497.50 = 137,381.64/x
  3. Step 3: Cross multiply
    190,919.40x = 263,497.50 × 137,381.64
  4. Step 4: Simplify right side
    190,919.40x = 36,199,718,685.90
  5. Step 5: Solve for x
    x = 36,199,718,685.90/190,919.40
  6. Step 6: Final answer
    x = 189,607.34

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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.