Home / 142,142.04-213,059.97-75,515.09

Finding the Fourth Proportional to 142,142.04, 213,059.97 and 75,515.09

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Solution

The fourth proportional to 142,142.04, 213,059.97 and 75,515.09 is: 113,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,142.04 : 213,059.97 = 75,515.09 : x
  2. Step 2: Convert to fraction form
    142,142.04/213,059.97 = 75,515.09/x
  3. Step 3: Cross multiply
    142,142.04x = 213,059.97 × 75,515.09
  4. Step 4: Simplify right side
    142,142.04x = 16,089,241,744.65
  5. Step 5: Solve for x
    x = 16,089,241,744.65/142,142.04
  6. Step 6: Final answer
    x = 113,191.30

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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.