Home / 209,532.42-289,164.20-123,495.03

Finding the Fourth Proportional to 209,532.42, 289,164.20 and 123,495.03

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Solution

The fourth proportional to 209,532.42, 289,164.20 and 123,495.03 is: 170,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,532.42 : 289,164.20 = 123,495.03 : x
  2. Step 2: Convert to fraction form
    209,532.42/289,164.20 = 123,495.03/x
  3. Step 3: Cross multiply
    209,532.42x = 289,164.20 × 123,495.03
  4. Step 4: Simplify right side
    209,532.42x = 35,710,340,936.45
  5. Step 5: Solve for x
    x = 35,710,340,936.45/209,532.42
  6. Step 6: Final answer
    x = 170,428.71

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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.