Home / 261,617.85-392,556.38-103,842.81

Finding the Fourth Proportional to 261,617.85, 392,556.38 and 103,842.81

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Solution

The fourth proportional to 261,617.85, 392,556.38 and 103,842.81 is: 155,815.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,617.85 : 392,556.38 = 103,842.81 : x
  2. Step 2: Convert to fraction form
    261,617.85/392,556.38 = 103,842.81/x
  3. Step 3: Cross multiply
    261,617.85x = 392,556.38 × 103,842.81
  4. Step 4: Simplify right side
    261,617.85x = 40,764,157,063.41
  5. Step 5: Solve for x
    x = 40,764,157,063.41/261,617.85
  6. Step 6: Final answer
    x = 155,815.66

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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.