Home / 130,072.94-179,529.62-79,074.88

Finding the Fourth Proportional to 130,072.94, 179,529.62 and 79,074.88

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Solution

The fourth proportional to 130,072.94, 179,529.62 and 79,074.88 is: 109,140.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,072.94 : 179,529.62 = 79,074.88 : x
  2. Step 2: Convert to fraction form
    130,072.94/179,529.62 = 79,074.88/x
  3. Step 3: Cross multiply
    130,072.94x = 179,529.62 × 79,074.88
  4. Step 4: Simplify right side
    130,072.94x = 14,196,283,157.95
  5. Step 5: Solve for x
    x = 14,196,283,157.95/130,072.94
  6. Step 6: Final answer
    x = 109,140.94

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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.