Home / 98,153.79-135,431.21-57,299.37

Finding the Fourth Proportional to 98,153.79, 135,431.21 and 57,299.37

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Solution

The fourth proportional to 98,153.79, 135,431.21 and 57,299.37 is: 79,060.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,153.79 : 135,431.21 = 57,299.37 : x
  2. Step 2: Convert to fraction form
    98,153.79/135,431.21 = 57,299.37/x
  3. Step 3: Cross multiply
    98,153.79x = 135,431.21 × 57,299.37
  4. Step 4: Simplify right side
    98,153.79x = 7,760,123,012.44
  5. Step 5: Solve for x
    x = 7,760,123,012.44/98,153.79
  6. Step 6: Final answer
    x = 79,060.86

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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.