Home / 102,974.52-142,102.85-57,652.59

Finding the Fourth Proportional to 102,974.52, 142,102.85 and 57,652.59

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Solution

The fourth proportional to 102,974.52, 142,102.85 and 57,652.59 is: 79,559.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,974.52 : 142,102.85 = 57,652.59 : x
  2. Step 2: Convert to fraction form
    102,974.52/142,102.85 = 57,652.59/x
  3. Step 3: Cross multiply
    102,974.52x = 142,102.85 × 57,652.59
  4. Step 4: Simplify right side
    102,974.52x = 8,192,597,060.62
  5. Step 5: Solve for x
    x = 8,192,597,060.62/102,974.52
  6. Step 6: Final answer
    x = 79,559.46

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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.