Home / 190,397.40-262,758.87-105,512.64

Finding the Fourth Proportional to 190,397.40, 262,758.87 and 105,512.64

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Solution

The fourth proportional to 190,397.40, 262,758.87 and 105,512.64 is: 145,613.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,397.40 : 262,758.87 = 105,512.64 : x
  2. Step 2: Convert to fraction form
    190,397.40/262,758.87 = 105,512.64/x
  3. Step 3: Cross multiply
    190,397.40x = 262,758.87 × 105,512.64
  4. Step 4: Simplify right side
    190,397.40x = 27,724,382,057.12
  5. Step 5: Solve for x
    x = 27,724,382,057.12/190,397.40
  6. Step 6: Final answer
    x = 145,613.24

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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.