Home / 102,858.02-141,957.70-57,553.37

Finding the Fourth Proportional to 102,858.02, 141,957.70 and 57,553.37

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Solution

The fourth proportional to 102,858.02, 141,957.70 and 57,553.37 is: 79,431.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,858.02 : 141,957.70 = 57,553.37 : x
  2. Step 2: Convert to fraction form
    102,858.02/141,957.70 = 57,553.37/x
  3. Step 3: Cross multiply
    102,858.02x = 141,957.70 × 57,553.37
  4. Step 4: Simplify right side
    102,858.02x = 8,170,143,178.78
  5. Step 5: Solve for x
    x = 8,170,143,178.78/102,858.02
  6. Step 6: Final answer
    x = 79,431.27

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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.