Home / 190,626.40-285,939.60-105,005.35

Finding the Fourth Proportional to 190,626.40, 285,939.60 and 105,005.35

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Solution

The fourth proportional to 190,626.40, 285,939.60 and 105,005.35 is: 157,508.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,626.40 : 285,939.60 = 105,005.35 : x
  2. Step 2: Convert to fraction form
    190,626.40/285,939.60 = 105,005.35/x
  3. Step 3: Cross multiply
    190,626.40x = 285,939.60 × 105,005.35
  4. Step 4: Simplify right side
    190,626.40x = 30,025,187,776.86
  5. Step 5: Solve for x
    x = 30,025,187,776.86/190,626.40
  6. Step 6: Final answer
    x = 157,508.03

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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.