Home / 190,634.42-285,953.55-57,515.78

Finding the Fourth Proportional to 190,634.42, 285,953.55 and 57,515.78

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Solution

The fourth proportional to 190,634.42, 285,953.55 and 57,515.78 is: 86,274.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,634.42 : 285,953.55 = 57,515.78 : x
  2. Step 2: Convert to fraction form
    190,634.42/285,953.55 = 57,515.78/x
  3. Step 3: Cross multiply
    190,634.42x = 285,953.55 × 57,515.78
  4. Step 4: Simplify right side
    190,634.42x = 16,446,841,472.02
  5. Step 5: Solve for x
    x = 16,446,841,472.02/190,634.42
  6. Step 6: Final answer
    x = 86,274.25

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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.