Home / 190,315.68-262,635.48-105,438.12

Finding the Fourth Proportional to 190,315.68, 262,635.48 and 105,438.12

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Solution

The fourth proportional to 190,315.68, 262,635.48 and 105,438.12 is: 145,504.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,315.68 : 262,635.48 = 105,438.12 : x
  2. Step 2: Convert to fraction form
    190,315.68/262,635.48 = 105,438.12/x
  3. Step 3: Cross multiply
    190,315.68x = 262,635.48 × 105,438.12
  4. Step 4: Simplify right side
    190,315.68x = 27,691,791,256.50
  5. Step 5: Solve for x
    x = 27,691,791,256.50/190,315.68
  6. Step 6: Final answer
    x = 145,504.52

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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.