Home / 150,126.03-207,173.81-82,143.45

Finding the Fourth Proportional to 150,126.03, 207,173.81 and 82,143.45

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Solution

The fourth proportional to 150,126.03, 207,173.81 and 82,143.45 is: 113,357.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,126.03 : 207,173.81 = 82,143.45 : x
  2. Step 2: Convert to fraction form
    150,126.03/207,173.81 = 82,143.45/x
  3. Step 3: Cross multiply
    150,126.03x = 207,173.81 × 82,143.45
  4. Step 4: Simplify right side
    150,126.03x = 17,017,971,708.40
  5. Step 5: Solve for x
    x = 17,017,971,708.40/150,126.03
  6. Step 6: Final answer
    x = 113,357.90

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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.