Home / 120,035.28-179,917.24-73,185.36

Finding the Fourth Proportional to 120,035.28, 179,917.24 and 73,185.36

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Solution

The fourth proportional to 120,035.28, 179,917.24 and 73,185.36 is: 109,695.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,035.28 : 179,917.24 = 73,185.36 : x
  2. Step 2: Convert to fraction form
    120,035.28/179,917.24 = 73,185.36/x
  3. Step 3: Cross multiply
    120,035.28x = 179,917.24 × 73,185.36
  4. Step 4: Simplify right side
    120,035.28x = 13,167,307,979.61
  5. Step 5: Solve for x
    x = 13,167,307,979.61/120,035.28
  6. Step 6: Final answer
    x = 109,695.32

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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.