Home / 190,106.30-285,144.60-49,861.28

Finding the Fourth Proportional to 190,106.30, 285,144.60 and 49,861.28

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Solution

The fourth proportional to 190,106.30, 285,144.60 and 49,861.28 is: 74,788.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,106.30 : 285,144.60 = 49,861.28 : x
  2. Step 2: Convert to fraction form
    190,106.30/285,144.60 = 49,861.28/x
  3. Step 3: Cross multiply
    190,106.30x = 285,144.60 × 49,861.28
  4. Step 4: Simplify right side
    190,106.30x = 14,217,674,741.09
  5. Step 5: Solve for x
    x = 14,217,674,741.09/190,106.30
  6. Step 6: Final answer
    x = 74,788.03

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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.