Home / 170,045.44-255,065.92-76,485.12

Finding the Fourth Proportional to 170,045.44, 255,065.92 and 76,485.12

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Solution

The fourth proportional to 170,045.44, 255,065.92 and 76,485.12 is: 114,726.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,045.44 : 255,065.92 = 76,485.12 : x
  2. Step 2: Convert to fraction form
    170,045.44/255,065.92 = 76,485.12/x
  3. Step 3: Cross multiply
    170,045.44x = 255,065.92 × 76,485.12
  4. Step 4: Simplify right side
    170,045.44x = 19,508,747,499.11
  5. Step 5: Solve for x
    x = 19,508,747,499.11/170,045.44
  6. Step 6: Final answer
    x = 114,726.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.