Home / 142,604.70-196,732.71-85,984.62

Finding the Fourth Proportional to 142,604.70, 196,732.71 and 85,984.62

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Solution

The fourth proportional to 142,604.70, 196,732.71 and 85,984.62 is: 118,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,604.70 : 196,732.71 = 85,984.62 : x
  2. Step 2: Convert to fraction form
    142,604.70/196,732.71 = 85,984.62/x
  3. Step 3: Cross multiply
    142,604.70x = 196,732.71 × 85,984.62
  4. Step 4: Simplify right side
    142,604.70x = 16,915,987,310.92
  5. Step 5: Solve for x
    x = 16,915,987,310.92/142,604.70
  6. Step 6: Final answer
    x = 118,621.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.