Home / 102,984.70-142,114.94-57,658.44

Finding the Fourth Proportional to 102,984.70, 142,114.94 and 57,658.44

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Solution

The fourth proportional to 102,984.70, 142,114.94 and 57,658.44 is: 79,566.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,984.70 : 142,114.94 = 57,658.44 : x
  2. Step 2: Convert to fraction form
    102,984.70/142,114.94 = 57,658.44/x
  3. Step 3: Cross multiply
    102,984.70x = 142,114.94 × 57,658.44
  4. Step 4: Simplify right side
    102,984.70x = 8,194,125,741.09
  5. Step 5: Solve for x
    x = 8,194,125,741.09/102,984.70
  6. Step 6: Final answer
    x = 79,566.44

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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.