Home / 148,689.14-205,185.51-80,704.65

Finding the Fourth Proportional to 148,689.14, 205,185.51 and 80,704.65

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Solution

The fourth proportional to 148,689.14, 205,185.51 and 80,704.65 is: 111,369.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,689.14 : 205,185.51 = 80,704.65 : x
  2. Step 2: Convert to fraction form
    148,689.14/205,185.51 = 80,704.65/x
  3. Step 3: Cross multiply
    148,689.14x = 205,185.51 × 80,704.65
  4. Step 4: Simplify right side
    148,689.14x = 16,559,424,769.62
  5. Step 5: Solve for x
    x = 16,559,424,769.62/148,689.14
  6. Step 6: Final answer
    x = 111,369.43

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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.