Home / 189,172.40-261,226.70-180,209.84

Finding the Fourth Proportional to 189,172.40, 261,226.70 and 180,209.84

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Solution

The fourth proportional to 189,172.40, 261,226.70 and 180,209.84 is: 248,850.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,172.40 : 261,226.70 = 180,209.84 : x
  2. Step 2: Convert to fraction form
    189,172.40/261,226.70 = 180,209.84/x
  3. Step 3: Cross multiply
    189,172.40x = 261,226.70 × 180,209.84
  4. Step 4: Simplify right side
    189,172.40x = 47,075,621,810.73
  5. Step 5: Solve for x
    x = 47,075,621,810.73/189,172.40
  6. Step 6: Final answer
    x = 248,850.37

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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.