Home / 150,369.12-207,512.64-82,391.04

Finding the Fourth Proportional to 150,369.12, 207,512.64 and 82,391.04

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Solution

The fourth proportional to 150,369.12, 207,512.64 and 82,391.04 is: 113,701.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,369.12 : 207,512.64 = 82,391.04 : x
  2. Step 2: Convert to fraction form
    150,369.12/207,512.64 = 82,391.04/x
  3. Step 3: Cross multiply
    150,369.12x = 207,512.64 × 82,391.04
  4. Step 4: Simplify right side
    150,369.12x = 17,097,182,222.75
  5. Step 5: Solve for x
    x = 17,097,182,222.75/150,369.12
  6. Step 6: Final answer
    x = 113,701.42

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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.