Home / 85,764.86-118,091.30-76,188.14

Finding the Fourth Proportional to 85,764.86, 118,091.30 and 76,188.14

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Solution

The fourth proportional to 85,764.86, 118,091.30 and 76,188.14 is: 104,904.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,764.86 : 118,091.30 = 76,188.14 : x
  2. Step 2: Convert to fraction form
    85,764.86/118,091.30 = 76,188.14/x
  3. Step 3: Cross multiply
    85,764.86x = 118,091.30 × 76,188.14
  4. Step 4: Simplify right side
    85,764.86x = 8,997,156,698.85
  5. Step 5: Solve for x
    x = 8,997,156,698.85/85,764.86
  6. Step 6: Final answer
    x = 104,904.93

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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.