Home / 102,975.20-154,448.40-32,861.60

Finding the Fourth Proportional to 102,975.20, 154,448.40 and 32,861.60

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Solution

The fourth proportional to 102,975.20, 154,448.40 and 32,861.60 is: 49,287.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,975.20 : 154,448.40 = 32,861.60 : x
  2. Step 2: Convert to fraction form
    102,975.20/154,448.40 = 32,861.60/x
  3. Step 3: Cross multiply
    102,975.20x = 154,448.40 × 32,861.60
  4. Step 4: Simplify right side
    102,975.20x = 5,075,421,541.44
  5. Step 5: Solve for x
    x = 5,075,421,541.44/102,975.20
  6. Step 6: Final answer
    x = 49,287.80

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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.