Home / 190,381.60-262,728.72-105,500.32

Finding the Fourth Proportional to 190,381.60, 262,728.72 and 105,500.32

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Solution

The fourth proportional to 190,381.60, 262,728.72 and 105,500.32 is: 145,591.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,381.60 : 262,728.72 = 105,500.32 : x
  2. Step 2: Convert to fraction form
    190,381.60/262,728.72 = 105,500.32/x
  3. Step 3: Cross multiply
    190,381.60x = 262,728.72 × 105,500.32
  4. Step 4: Simplify right side
    190,381.60x = 27,717,964,033.19
  5. Step 5: Solve for x
    x = 27,717,964,033.19/190,381.60
  6. Step 6: Final answer
    x = 145,591.61

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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.