Home / 190,629.72-263,100.54-105,774.12

Finding the Fourth Proportional to 190,629.72, 263,100.54 and 105,774.12

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Solution

The fourth proportional to 190,629.72, 263,100.54 and 105,774.12 is: 145,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,629.72 : 263,100.54 = 105,774.12 : x
  2. Step 2: Convert to fraction form
    190,629.72/263,100.54 = 105,774.12/x
  3. Step 3: Cross multiply
    190,629.72x = 263,100.54 × 105,774.12
  4. Step 4: Simplify right side
    190,629.72x = 27,829,228,090.02
  5. Step 5: Solve for x
    x = 27,829,228,090.02/190,629.72
  6. Step 6: Final answer
    x = 145,985.78

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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.