Home / 142,182.41-213,103.97-66,178.67

Finding the Fourth Proportional to 142,182.41, 213,103.97 and 66,178.67

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Solution

The fourth proportional to 142,182.41, 213,103.97 and 66,178.67 is: 99,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,182.41 : 213,103.97 = 66,178.67 : x
  2. Step 2: Convert to fraction form
    142,182.41/213,103.97 = 66,178.67/x
  3. Step 3: Cross multiply
    142,182.41x = 213,103.97 × 66,178.67
  4. Step 4: Simplify right side
    142,182.41x = 14,102,936,975.43
  5. Step 5: Solve for x
    x = 14,102,936,975.43/142,182.41
  6. Step 6: Final answer
    x = 99,189.04

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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.