Home / 189,930.24-262,091.52-105,045.12

Finding the Fourth Proportional to 189,930.24, 262,091.52 and 105,045.12

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Solution

The fourth proportional to 189,930.24, 262,091.52 and 105,045.12 is: 144,955.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,930.24 : 262,091.52 = 105,045.12 : x
  2. Step 2: Convert to fraction form
    189,930.24/262,091.52 = 105,045.12/x
  3. Step 3: Cross multiply
    189,930.24x = 262,091.52 × 105,045.12
  4. Step 4: Simplify right side
    189,930.24x = 27,531,435,169.38
  5. Step 5: Solve for x
    x = 27,531,435,169.38/189,930.24
  6. Step 6: Final answer
    x = 144,955.51

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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.