Home / 189,407.42-261,436.88-111,954.82

Finding the Fourth Proportional to 189,407.42, 261,436.88 and 111,954.82

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Solution

The fourth proportional to 189,407.42, 261,436.88 and 111,954.82 is: 154,529.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,407.42 : 261,436.88 = 111,954.82 : x
  2. Step 2: Convert to fraction form
    189,407.42/261,436.88 = 111,954.82/x
  3. Step 3: Cross multiply
    189,407.42x = 261,436.88 × 111,954.82
  4. Step 4: Simplify right side
    189,407.42x = 29,269,118,841.76
  5. Step 5: Solve for x
    x = 29,269,118,841.76/189,407.42
  6. Step 6: Final answer
    x = 154,529.95

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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.