Home / 190,351.62-262,566.30-122,457

Finding the Fourth Proportional to 190,351.62, 262,566.30 and 122,457

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Solution

The fourth proportional to 190,351.62, 262,566.30 and 122,457 is: 168,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,351.62 : 262,566.30 = 122,457 : x
  2. Step 2: Convert to fraction form
    190,351.62/262,566.30 = 122,457/x
  3. Step 3: Cross multiply
    190,351.62x = 262,566.30 × 122,457
  4. Step 4: Simplify right side
    190,351.62x = 32,153,081,399.10
  5. Step 5: Solve for x
    x = 32,153,081,399.10/190,351.62
  6. Step 6: Final answer
    x = 168,914.15

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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.