Home / 130,072.85-179,529.48-79,074.77

Finding the Fourth Proportional to 130,072.85, 179,529.48 and 79,074.77

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Solution

The fourth proportional to 130,072.85, 179,529.48 and 79,074.77 is: 109,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,072.85 : 179,529.48 = 79,074.77 : x
  2. Step 2: Convert to fraction form
    130,072.85/179,529.48 = 79,074.77/x
  3. Step 3: Cross multiply
    130,072.85x = 179,529.48 × 79,074.77
  4. Step 4: Simplify right side
    130,072.85x = 14,196,252,622.76
  5. Step 5: Solve for x
    x = 14,196,252,622.76/130,072.85
  6. Step 6: Final answer
    x = 109,140.78

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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.