Home / 189,426.34-261,442.25-112,950.37

Finding the Fourth Proportional to 189,426.34, 261,442.25 and 112,950.37

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Solution

The fourth proportional to 189,426.34, 261,442.25 and 112,950.37 is: 155,891.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,426.34 : 261,442.25 = 112,950.37 : x
  2. Step 2: Convert to fraction form
    189,426.34/261,442.25 = 112,950.37/x
  3. Step 3: Cross multiply
    189,426.34x = 261,442.25 × 112,950.37
  4. Step 4: Simplify right side
    189,426.34x = 29,529,998,871.13
  5. Step 5: Solve for x
    x = 29,529,998,871.13/189,426.34
  6. Step 6: Final answer
    x = 155,891.72

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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.