Home / 204,825.14-307,026.60-78,430.86

Finding the Fourth Proportional to 204,825.14, 307,026.60 and 78,430.86

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Solution

The fourth proportional to 204,825.14, 307,026.60 and 78,430.86 is: 117,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,825.14 : 307,026.60 = 78,430.86 : x
  2. Step 2: Convert to fraction form
    204,825.14/307,026.60 = 78,430.86/x
  3. Step 3: Cross multiply
    204,825.14x = 307,026.60 × 78,430.86
  4. Step 4: Simplify right side
    204,825.14x = 24,080,360,280.88
  5. Step 5: Solve for x
    x = 24,080,360,280.88/204,825.14
  6. Step 6: Final answer
    x = 117,565.45

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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.