Home / 132,728.82-183,166.02-79,015.70

Finding the Fourth Proportional to 132,728.82, 183,166.02 and 79,015.70

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Solution

The fourth proportional to 132,728.82, 183,166.02 and 79,015.70 is: 109,041.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,728.82 : 183,166.02 = 79,015.70 : x
  2. Step 2: Convert to fraction form
    132,728.82/183,166.02 = 79,015.70/x
  3. Step 3: Cross multiply
    132,728.82x = 183,166.02 × 79,015.70
  4. Step 4: Simplify right side
    132,728.82x = 14,472,990,370.68
  5. Step 5: Solve for x
    x = 14,472,990,370.68/132,728.82
  6. Step 6: Final answer
    x = 109,041.81

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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.