Home / 120,412.36-180,552.78-95,611.72

Finding the Fourth Proportional to 120,412.36, 180,552.78 and 95,611.72

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Solution

The fourth proportional to 120,412.36, 180,552.78 and 95,611.72 is: 143,365.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,412.36 : 180,552.78 = 95,611.72 : x
  2. Step 2: Convert to fraction form
    120,412.36/180,552.78 = 95,611.72/x
  3. Step 3: Cross multiply
    120,412.36x = 180,552.78 × 95,611.72
  4. Step 4: Simplify right side
    120,412.36x = 17,262,961,846.58
  5. Step 5: Solve for x
    x = 17,262,961,846.58/120,412.36
  6. Step 6: Final answer
    x = 143,365.36

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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.