Home / 177,721.86-245,216.64-102,270.36

Finding the Fourth Proportional to 177,721.86, 245,216.64 and 102,270.36

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Solution

The fourth proportional to 177,721.86, 245,216.64 and 102,270.36 is: 141,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,721.86 : 245,216.64 = 102,270.36 : x
  2. Step 2: Convert to fraction form
    177,721.86/245,216.64 = 102,270.36/x
  3. Step 3: Cross multiply
    177,721.86x = 245,216.64 × 102,270.36
  4. Step 4: Simplify right side
    177,721.86x = 25,078,394,050.79
  5. Step 5: Solve for x
    x = 25,078,394,050.79/177,721.86
  6. Step 6: Final answer
    x = 141,110.35

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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.