Home / 135,800.20-187,406.22-82,075.60

Finding the Fourth Proportional to 135,800.20, 187,406.22 and 82,075.60

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Solution

The fourth proportional to 135,800.20, 187,406.22 and 82,075.60 is: 113,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,800.20 : 187,406.22 = 82,075.60 : x
  2. Step 2: Convert to fraction form
    135,800.20/187,406.22 = 82,075.60/x
  3. Step 3: Cross multiply
    135,800.20x = 187,406.22 × 82,075.60
  4. Step 4: Simplify right side
    135,800.20x = 15,381,477,950.23
  5. Step 5: Solve for x
    x = 15,381,477,950.23/135,800.20
  6. Step 6: Final answer
    x = 113,265.50

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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.