Home / 104,111.29-156,231.19-40,920.33

Finding the Fourth Proportional to 104,111.29, 156,231.19 and 40,920.33

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Solution

The fourth proportional to 104,111.29, 156,231.19 and 40,920.33 is: 61,405.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,111.29 : 156,231.19 = 40,920.33 : x
  2. Step 2: Convert to fraction form
    104,111.29/156,231.19 = 40,920.33/x
  3. Step 3: Cross multiply
    104,111.29x = 156,231.19 × 40,920.33
  4. Step 4: Simplify right side
    104,111.29x = 6,393,031,851.09
  5. Step 5: Solve for x
    x = 6,393,031,851.09/104,111.29
  6. Step 6: Final answer
    x = 61,405.75

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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.