Home / 102,964.86-142,079.76-57,636.54

Finding the Fourth Proportional to 102,964.86, 142,079.76 and 57,636.54

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Solution

The fourth proportional to 102,964.86, 142,079.76 and 57,636.54 is: 79,531.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,964.86 : 142,079.76 = 57,636.54 : x
  2. Step 2: Convert to fraction form
    102,964.86/142,079.76 = 57,636.54/x
  3. Step 3: Cross multiply
    102,964.86x = 142,079.76 × 57,636.54
  4. Step 4: Simplify right side
    102,964.86x = 8,188,985,770.43
  5. Step 5: Solve for x
    x = 8,188,985,770.43/102,964.86
  6. Step 6: Final answer
    x = 79,531.85

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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.