Home / 139,698.07-209,554.85-39,850.58

Finding the Fourth Proportional to 139,698.07, 209,554.85 and 39,850.58

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Solution

The fourth proportional to 139,698.07, 209,554.85 and 39,850.58 is: 59,778.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,698.07 : 209,554.85 = 39,850.58 : x
  2. Step 2: Convert to fraction form
    139,698.07/209,554.85 = 39,850.58/x
  3. Step 3: Cross multiply
    139,698.07x = 209,554.85 × 39,850.58
  4. Step 4: Simplify right side
    139,698.07x = 8,350,882,314.31
  5. Step 5: Solve for x
    x = 8,350,882,314.31/139,698.07
  6. Step 6: Final answer
    x = 59,778.08

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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.