Home / 253,933.54-381,075.59-87,721.54

Finding the Fourth Proportional to 253,933.54, 381,075.59 and 87,721.54

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Solution

The fourth proportional to 253,933.54, 381,075.59 and 87,721.54 is: 131,642.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,933.54 : 381,075.59 = 87,721.54 : x
  2. Step 2: Convert to fraction form
    253,933.54/381,075.59 = 87,721.54/x
  3. Step 3: Cross multiply
    253,933.54x = 381,075.59 × 87,721.54
  4. Step 4: Simplify right side
    253,933.54x = 33,428,537,611.21
  5. Step 5: Solve for x
    x = 33,428,537,611.21/253,933.54
  6. Step 6: Final answer
    x = 131,642.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.