Home / 190,581.86-263,019.12-105,726.26

Finding the Fourth Proportional to 190,581.86, 263,019.12 and 105,726.26

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Solution

The fourth proportional to 190,581.86, 263,019.12 and 105,726.26 is: 145,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,581.86 : 263,019.12 = 105,726.26 : x
  2. Step 2: Convert to fraction form
    190,581.86/263,019.12 = 105,726.26/x
  3. Step 3: Cross multiply
    190,581.86x = 263,019.12 × 105,726.26
  4. Step 4: Simplify right side
    190,581.86x = 27,808,027,866.09
  5. Step 5: Solve for x
    x = 27,808,027,866.09/190,581.86
  6. Step 6: Final answer
    x = 145,911.20

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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.