Home / 190,438.77-285,568.62-70,412.79

Finding the Fourth Proportional to 190,438.77, 285,568.62 and 70,412.79

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Solution

The fourth proportional to 190,438.77, 285,568.62 and 70,412.79 is: 105,586.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,438.77 : 285,568.62 = 70,412.79 : x
  2. Step 2: Convert to fraction form
    190,438.77/285,568.62 = 70,412.79/x
  3. Step 3: Cross multiply
    190,438.77x = 285,568.62 × 70,412.79
  4. Step 4: Simplify right side
    190,438.77x = 20,107,682,670.57
  5. Step 5: Solve for x
    x = 20,107,682,670.57/190,438.77
  6. Step 6: Final answer
    x = 105,586.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.