Home / 190,416.49-262,764.99-109,839.20

Finding the Fourth Proportional to 190,416.49, 262,764.99 and 109,839.20

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Solution

The fourth proportional to 190,416.49, 262,764.99 and 109,839.20 is: 151,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,416.49 : 262,764.99 = 109,839.20 : x
  2. Step 2: Convert to fraction form
    190,416.49/262,764.99 = 109,839.20/x
  3. Step 3: Cross multiply
    190,416.49x = 262,764.99 × 109,839.20
  4. Step 4: Simplify right side
    190,416.49x = 28,861,896,289.61
  5. Step 5: Solve for x
    x = 28,861,896,289.61/190,416.49
  6. Step 6: Final answer
    x = 151,572.47

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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.