Home / 168,975.42-233,170.25-100,978.85

Finding the Fourth Proportional to 168,975.42, 233,170.25 and 100,978.85

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Solution

The fourth proportional to 168,975.42, 233,170.25 and 100,978.85 is: 139,341.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,975.42 : 233,170.25 = 100,978.85 : x
  2. Step 2: Convert to fraction form
    168,975.42/233,170.25 = 100,978.85/x
  3. Step 3: Cross multiply
    168,975.42x = 233,170.25 × 100,978.85
  4. Step 4: Simplify right side
    168,975.42x = 23,545,263,699.21
  5. Step 5: Solve for x
    x = 23,545,263,699.21/168,975.42
  6. Step 6: Final answer
    x = 139,341.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.