Home / 318,126.47-439,022.90-174,890.12

Finding the Fourth Proportional to 318,126.47, 439,022.90 and 174,890.12

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Solution

The fourth proportional to 318,126.47, 439,022.90 and 174,890.12 is: 241,352.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,126.47 : 439,022.90 = 174,890.12 : x
  2. Step 2: Convert to fraction form
    318,126.47/439,022.90 = 174,890.12/x
  3. Step 3: Cross multiply
    318,126.47x = 439,022.90 × 174,890.12
  4. Step 4: Simplify right side
    318,126.47x = 76,780,765,905.86
  5. Step 5: Solve for x
    x = 76,780,765,905.86/318,126.47
  6. Step 6: Final answer
    x = 241,352.97

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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.