Home / 132,904.80-183,409.20-79,216.80

Finding the Fourth Proportional to 132,904.80, 183,409.20 and 79,216.80

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Solution

The fourth proportional to 132,904.80, 183,409.20 and 79,216.80 is: 109,319.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,904.80 : 183,409.20 = 79,216.80 : x
  2. Step 2: Convert to fraction form
    132,904.80/183,409.20 = 79,216.80/x
  3. Step 3: Cross multiply
    132,904.80x = 183,409.20 × 79,216.80
  4. Step 4: Simplify right side
    132,904.80x = 14,529,089,914.56
  5. Step 5: Solve for x
    x = 14,529,089,914.56/132,904.80
  6. Step 6: Final answer
    x = 109,319.53

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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.