Home / 177,789.12-245,351.62-120,445.98

Finding the Fourth Proportional to 177,789.12, 245,351.62 and 120,445.98

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Solution

The fourth proportional to 177,789.12, 245,351.62 and 120,445.98 is: 166,217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,789.12 : 245,351.62 = 120,445.98 : x
  2. Step 2: Convert to fraction form
    177,789.12/245,351.62 = 120,445.98/x
  3. Step 3: Cross multiply
    177,789.12x = 245,351.62 × 120,445.98
  4. Step 4: Simplify right side
    177,789.12x = 29,551,616,315.49
  5. Step 5: Solve for x
    x = 29,551,616,315.49/177,789.12
  6. Step 6: Final answer
    x = 166,217.24

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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.