Home / 215,505.87-297,386.75-123,620.52

Finding the Fourth Proportional to 215,505.87, 297,386.75 and 123,620.52

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Solution

The fourth proportional to 215,505.87, 297,386.75 and 123,620.52 is: 170,589.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,505.87 : 297,386.75 = 123,620.52 : x
  2. Step 2: Convert to fraction form
    215,505.87/297,386.75 = 123,620.52/x
  3. Step 3: Cross multiply
    215,505.87x = 297,386.75 × 123,620.52
  4. Step 4: Simplify right side
    215,505.87x = 36,763,103,792.06
  5. Step 5: Solve for x
    x = 36,763,103,792.06/215,505.87
  6. Step 6: Final answer
    x = 170,589.80

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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.