Home / 142,850.45-197,120.36-79,182.83

Finding the Fourth Proportional to 142,850.45, 197,120.36 and 79,182.83

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Solution

The fourth proportional to 142,850.45, 197,120.36 and 79,182.83 is: 109,264.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,850.45 : 197,120.36 = 79,182.83 : x
  2. Step 2: Convert to fraction form
    142,850.45/197,120.36 = 79,182.83/x
  3. Step 3: Cross multiply
    142,850.45x = 197,120.36 × 79,182.83
  4. Step 4: Simplify right side
    142,850.45x = 15,608,546,573.90
  5. Step 5: Solve for x
    x = 15,608,546,573.90/142,850.45
  6. Step 6: Final answer
    x = 109,264.95

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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.