Home / 123,986.62-171,103.40-69,550.85

Finding the Fourth Proportional to 123,986.62, 171,103.40 and 69,550.85

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Solution

The fourth proportional to 123,986.62, 171,103.40 and 69,550.85 is: 95,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,986.62 : 171,103.40 = 69,550.85 : x
  2. Step 2: Convert to fraction form
    123,986.62/171,103.40 = 69,550.85/x
  3. Step 3: Cross multiply
    123,986.62x = 171,103.40 × 69,550.85
  4. Step 4: Simplify right side
    123,986.62x = 11,900,386,907.89
  5. Step 5: Solve for x
    x = 11,900,386,907.89/123,986.62
  6. Step 6: Final answer
    x = 95,981.22

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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.