Home / 139,186.98-208,778.64-34,006.86

Finding the Fourth Proportional to 139,186.98, 208,778.64 and 34,006.86

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Solution

The fourth proportional to 139,186.98, 208,778.64 and 34,006.86 is: 51,009.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,186.98 : 208,778.64 = 34,006.86 : x
  2. Step 2: Convert to fraction form
    139,186.98/208,778.64 = 34,006.86/x
  3. Step 3: Cross multiply
    139,186.98x = 208,778.64 × 34,006.86
  4. Step 4: Simplify right side
    139,186.98x = 7,099,904,937.58
  5. Step 5: Solve for x
    x = 7,099,904,937.58/139,186.98
  6. Step 6: Final answer
    x = 51,009.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.