Home / 190,421.28-262,900.80-122,556.12

Finding the Fourth Proportional to 190,421.28, 262,900.80 and 122,556.12

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Solution

The fourth proportional to 190,421.28, 262,900.80 and 122,556.12 is: 169,204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,421.28 : 262,900.80 = 122,556.12 : x
  2. Step 2: Convert to fraction form
    190,421.28/262,900.80 = 122,556.12/x
  3. Step 3: Cross multiply
    190,421.28x = 262,900.80 × 122,556.12
  4. Step 4: Simplify right side
    190,421.28x = 32,220,101,992.90
  5. Step 5: Solve for x
    x = 32,220,101,992.90/190,421.28
  6. Step 6: Final answer
    x = 169,204.31

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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.