Home / 105,555.24-158,195.16-80,503.56

Finding the Fourth Proportional to 105,555.24, 158,195.16 and 80,503.56

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Solution

The fourth proportional to 105,555.24, 158,195.16 and 80,503.56 is: 120,650.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,555.24 : 158,195.16 = 80,503.56 : x
  2. Step 2: Convert to fraction form
    105,555.24/158,195.16 = 80,503.56/x
  3. Step 3: Cross multiply
    105,555.24x = 158,195.16 × 80,503.56
  4. Step 4: Simplify right side
    105,555.24x = 12,735,273,554.77
  5. Step 5: Solve for x
    x = 12,735,273,554.77/105,555.24
  6. Step 6: Final answer
    x = 120,650.32

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1.5x scale

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.