Home / 148,689.08-205,185.42-80,704.59

Finding the Fourth Proportional to 148,689.08, 205,185.42 and 80,704.59

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Solution

The fourth proportional to 148,689.08, 205,185.42 and 80,704.59 is: 111,369.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,689.08 : 205,185.42 = 80,704.59 : x
  2. Step 2: Convert to fraction form
    148,689.08/205,185.42 = 80,704.59/x
  3. Step 3: Cross multiply
    148,689.08x = 205,185.42 × 80,704.59
  4. Step 4: Simplify right side
    148,689.08x = 16,559,405,195.08
  5. Step 5: Solve for x
    x = 16,559,405,195.08/148,689.08
  6. Step 6: Final answer
    x = 111,369.34

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1.5x scale

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.