Home / 209,068.44-288,515.16-123,030.78

Finding the Fourth Proportional to 209,068.44, 288,515.16 and 123,030.78

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Solution

The fourth proportional to 209,068.44, 288,515.16 and 123,030.78 is: 169,782.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,068.44 : 288,515.16 = 123,030.78 : x
  2. Step 2: Convert to fraction form
    209,068.44/288,515.16 = 123,030.78/x
  3. Step 3: Cross multiply
    209,068.44x = 288,515.16 × 123,030.78
  4. Step 4: Simplify right side
    209,068.44x = 35,496,245,176.62
  5. Step 5: Solve for x
    x = 35,496,245,176.62/209,068.44
  6. Step 6: Final answer
    x = 169,782.90

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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.