Home / 115,148.26-172,708.71-40,262.68

Finding the Fourth Proportional to 115,148.26, 172,708.71 and 40,262.68

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Solution

The fourth proportional to 115,148.26, 172,708.71 and 40,262.68 is: 60,389.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,148.26 : 172,708.71 = 40,262.68 : x
  2. Step 2: Convert to fraction form
    115,148.26/172,708.71 = 40,262.68/x
  3. Step 3: Cross multiply
    115,148.26x = 172,708.71 × 40,262.68
  4. Step 4: Simplify right side
    115,148.26x = 6,953,715,523.94
  5. Step 5: Solve for x
    x = 6,953,715,523.94/115,148.26
  6. Step 6: Final answer
    x = 60,389.24

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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.