Home / 107,712.56-161,571-28,826.66

Finding the Fourth Proportional to 107,712.56, 161,571 and 28,826.66

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Solution

The fourth proportional to 107,712.56, 161,571 and 28,826.66 is: 43,240.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,712.56 : 161,571 = 28,826.66 : x
  2. Step 2: Convert to fraction form
    107,712.56/161,571 = 28,826.66/x
  3. Step 3: Cross multiply
    107,712.56x = 161,571 × 28,826.66
  4. Step 4: Simplify right side
    107,712.56x = 4,657,552,282.86
  5. Step 5: Solve for x
    x = 4,657,552,282.86/107,712.56
  6. Step 6: Final answer
    x = 43,240.57

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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.