Home / 190,218.60-285,306.30-49,991.40

Finding the Fourth Proportional to 190,218.60, 285,306.30 and 49,991.40

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Solution

The fourth proportional to 190,218.60, 285,306.30 and 49,991.40 is: 74,981.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,218.60 : 285,306.30 = 49,991.40 : x
  2. Step 2: Convert to fraction form
    190,218.60/285,306.30 = 49,991.40/x
  3. Step 3: Cross multiply
    190,218.60x = 285,306.30 × 49,991.40
  4. Step 4: Simplify right side
    190,218.60x = 14,262,861,365.82
  5. Step 5: Solve for x
    x = 14,262,861,365.82/190,218.60
  6. Step 6: Final answer
    x = 74,981.42

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1.5x scale

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.