Home / 190,189.60-262,302.18-122,217.64

Finding the Fourth Proportional to 190,189.60, 262,302.18 and 122,217.64

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Solution

The fourth proportional to 190,189.60, 262,302.18 and 122,217.64 is: 168,557.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,189.60 : 262,302.18 = 122,217.64 : x
  2. Step 2: Convert to fraction form
    190,189.60/262,302.18 = 122,217.64/x
  3. Step 3: Cross multiply
    190,189.60x = 262,302.18 × 122,217.64
  4. Step 4: Simplify right side
    190,189.60x = 32,057,953,406.46
  5. Step 5: Solve for x
    x = 32,057,953,406.46/190,189.60
  6. Step 6: Final answer
    x = 168,557.87

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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.