Home / 178,986.45-247,001.26-98,419.20

Finding the Fourth Proportional to 178,986.45, 247,001.26 and 98,419.20

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Solution

The fourth proportional to 178,986.45, 247,001.26 and 98,419.20 is: 135,818.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,986.45 : 247,001.26 = 98,419.20 : x
  2. Step 2: Convert to fraction form
    178,986.45/247,001.26 = 98,419.20/x
  3. Step 3: Cross multiply
    178,986.45x = 247,001.26 × 98,419.20
  4. Step 4: Simplify right side
    178,986.45x = 24,309,665,420.43
  5. Step 5: Solve for x
    x = 24,309,665,420.43/178,986.45
  6. Step 6: Final answer
    x = 135,818.47

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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.