Home / 177,721.14-245,215.62-102,269.64

Finding the Fourth Proportional to 177,721.14, 245,215.62 and 102,269.64

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Solution

The fourth proportional to 177,721.14, 245,215.62 and 102,269.64 is: 141,109.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,721.14 : 245,215.62 = 102,269.64 : x
  2. Step 2: Convert to fraction form
    177,721.14/245,215.62 = 102,269.64/x
  3. Step 3: Cross multiply
    177,721.14x = 245,215.62 × 102,269.64
  4. Step 4: Simplify right side
    177,721.14x = 25,078,113,179.78
  5. Step 5: Solve for x
    x = 25,078,113,179.78/177,721.14
  6. Step 6: Final answer
    x = 141,109.34

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1.5x scale

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.