Home / 104,559.31-156,750.79-45,350.38

Finding the Fourth Proportional to 104,559.31, 156,750.79 and 45,350.38

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Solution

The fourth proportional to 104,559.31, 156,750.79 and 45,350.38 is: 67,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,559.31 : 156,750.79 = 45,350.38 : x
  2. Step 2: Convert to fraction form
    104,559.31/156,750.79 = 45,350.38/x
  3. Step 3: Cross multiply
    104,559.31x = 156,750.79 × 45,350.38
  4. Step 4: Simplify right side
    104,559.31x = 7,108,707,665.05
  5. Step 5: Solve for x
    x = 7,108,707,665.05/104,559.31
  6. Step 6: Final answer
    x = 67,987.33

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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.