Home / 190,667.10-263,117.08-105,782.34

Finding the Fourth Proportional to 190,667.10, 263,117.08 and 105,782.34

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Solution

The fourth proportional to 190,667.10, 263,117.08 and 105,782.34 is: 145,977.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,667.10 : 263,117.08 = 105,782.34 : x
  2. Step 2: Convert to fraction form
    190,667.10/263,117.08 = 105,782.34/x
  3. Step 3: Cross multiply
    190,667.10x = 263,117.08 × 105,782.34
  4. Step 4: Simplify right side
    190,667.10x = 27,833,140,416.37
  5. Step 5: Solve for x
    x = 27,833,140,416.37/190,667.10
  6. Step 6: Final answer
    x = 145,977.68

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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.