Home / 209,623.18-289,377.48-123,555.04

Finding the Fourth Proportional to 209,623.18, 289,377.48 and 123,555.04

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Solution

The fourth proportional to 209,623.18, 289,377.48 and 123,555.04 is: 170,563.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,623.18 : 289,377.48 = 123,555.04 : x
  2. Step 2: Convert to fraction form
    209,623.18/289,377.48 = 123,555.04/x
  3. Step 3: Cross multiply
    209,623.18x = 289,377.48 × 123,555.04
  4. Step 4: Simplify right side
    209,623.18x = 35,754,046,116.50
  5. Step 5: Solve for x
    x = 35,754,046,116.50/209,623.18
  6. Step 6: Final answer
    x = 170,563.42

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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.