Home / 189,577.62-261,609.90-103,533.72

Finding the Fourth Proportional to 189,577.62, 261,609.90 and 103,533.72

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Solution

The fourth proportional to 189,577.62, 261,609.90 and 103,533.72 is: 142,872.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,577.62 : 261,609.90 = 103,533.72 : x
  2. Step 2: Convert to fraction form
    189,577.62/261,609.90 = 103,533.72/x
  3. Step 3: Cross multiply
    189,577.62x = 261,609.90 × 103,533.72
  4. Step 4: Simplify right side
    189,577.62x = 27,085,446,135.83
  5. Step 5: Solve for x
    x = 27,085,446,135.83/189,577.62
  6. Step 6: Final answer
    x = 142,872.59

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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.