Home / 190,173.65-262,457.25-105,290.72

Finding the Fourth Proportional to 190,173.65, 262,457.25 and 105,290.72

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Solution

The fourth proportional to 190,173.65, 262,457.25 and 105,290.72 is: 145,310.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,173.65 : 262,457.25 = 105,290.72 : x
  2. Step 2: Convert to fraction form
    190,173.65/262,457.25 = 105,290.72/x
  3. Step 3: Cross multiply
    190,173.65x = 262,457.25 × 105,290.72
  4. Step 4: Simplify right side
    190,173.65x = 27,634,311,509.43
  5. Step 5: Solve for x
    x = 27,634,311,509.43/190,173.65
  6. Step 6: Final answer
    x = 145,310.94

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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.