Home / 155,107.80-213,994.23-101,424.24

Finding the Fourth Proportional to 155,107.80, 213,994.23 and 101,424.24

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Solution

The fourth proportional to 155,107.80, 213,994.23 and 101,424.24 is: 139,929.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,107.80 : 213,994.23 = 101,424.24 : x
  2. Step 2: Convert to fraction form
    155,107.80/213,994.23 = 101,424.24/x
  3. Step 3: Cross multiply
    155,107.80x = 213,994.23 × 101,424.24
  4. Step 4: Simplify right side
    155,107.80x = 21,704,202,142.14
  5. Step 5: Solve for x
    x = 21,704,202,142.14/155,107.80
  6. Step 6: Final answer
    x = 139,929.79

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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.