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Finding the Fourth Proportional to 189,080.34, 260,941.14 and 108,507.21

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Solution

The fourth proportional to 189,080.34, 260,941.14 and 108,507.21 is: 149,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,080.34 : 260,941.14 = 108,507.21 : x
  2. Step 2: Convert to fraction form
    189,080.34/260,941.14 = 108,507.21/x
  3. Step 3: Cross multiply
    189,080.34x = 260,941.14 × 108,507.21
  4. Step 4: Simplify right side
    189,080.34x = 28,313,995,075.62
  5. Step 5: Solve for x
    x = 28,313,995,075.62/189,080.34
  6. Step 6: Final answer
    x = 149,745.84

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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.