Home / 190,173.47-262,456.99-105,290.53

Finding the Fourth Proportional to 190,173.47, 262,456.99 and 105,290.53

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Solution

The fourth proportional to 190,173.47, 262,456.99 and 105,290.53 is: 145,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,173.47 : 262,456.99 = 105,290.53 : x
  2. Step 2: Convert to fraction form
    190,173.47/262,456.99 = 105,290.53/x
  3. Step 3: Cross multiply
    190,173.47x = 262,456.99 × 105,290.53
  4. Step 4: Simplify right side
    190,173.47x = 27,634,235,579.30
  5. Step 5: Solve for x
    x = 27,634,235,579.30/190,173.47
  6. Step 6: Final answer
    x = 145,310.68

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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.