Home / 159,429.60-219,769.20-102,768.48

Finding the Fourth Proportional to 159,429.60, 219,769.20 and 102,768.48

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Solution

The fourth proportional to 159,429.60, 219,769.20 and 102,768.48 is: 141,663.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,429.60 : 219,769.20 = 102,768.48 : x
  2. Step 2: Convert to fraction form
    159,429.60/219,769.20 = 102,768.48/x
  3. Step 3: Cross multiply
    159,429.60x = 219,769.20 × 102,768.48
  4. Step 4: Simplify right side
    159,429.60x = 22,585,346,634.82
  5. Step 5: Solve for x
    x = 22,585,346,634.82/159,429.60
  6. Step 6: Final answer
    x = 141,663.45

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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.