Home / 209,626.14-289,259.02-123,519.90

Finding the Fourth Proportional to 209,626.14, 289,259.02 and 123,519.90

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Solution

The fourth proportional to 209,626.14, 289,259.02 and 123,519.90 is: 170,442.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,626.14 : 289,259.02 = 123,519.90 : x
  2. Step 2: Convert to fraction form
    209,626.14/289,259.02 = 123,519.90/x
  3. Step 3: Cross multiply
    209,626.14x = 289,259.02 × 123,519.90
  4. Step 4: Simplify right side
    209,626.14x = 35,729,245,224.50
  5. Step 5: Solve for x
    x = 35,729,245,224.50/209,626.14
  6. Step 6: Final answer
    x = 170,442.70

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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.