Home / 190,523.20-262,909.20-105,637.12

Finding the Fourth Proportional to 190,523.20, 262,909.20 and 105,637.12

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Solution

The fourth proportional to 190,523.20, 262,909.20 and 105,637.12 is: 145,772.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,523.20 : 262,909.20 = 105,637.12 : x
  2. Step 2: Convert to fraction form
    190,523.20/262,909.20 = 105,637.12/x
  3. Step 3: Cross multiply
    190,523.20x = 262,909.20 × 105,637.12
  4. Step 4: Simplify right side
    190,523.20x = 27,772,970,709.50
  5. Step 5: Solve for x
    x = 27,772,970,709.50/190,523.20
  6. Step 6: Final answer
    x = 145,772.12

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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.