Home / 189,709.75-261,796.29-103,666.85

Finding the Fourth Proportional to 189,709.75, 261,796.29 and 103,666.85

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Solution

The fourth proportional to 189,709.75, 261,796.29 and 103,666.85 is: 143,058.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,709.75 : 261,796.29 = 103,666.85 : x
  2. Step 2: Convert to fraction form
    189,709.75/261,796.29 = 103,666.85/x
  3. Step 3: Cross multiply
    189,709.75x = 261,796.29 × 103,666.85
  4. Step 4: Simplify right side
    189,709.75x = 27,139,596,725.99
  5. Step 5: Solve for x
    x = 27,139,596,725.99/189,709.75
  6. Step 6: Final answer
    x = 143,058.52

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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.