Home / 165,606.60-248,574.70-76,880.20

Finding the Fourth Proportional to 165,606.60, 248,574.70 and 76,880.20

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Solution

The fourth proportional to 165,606.60, 248,574.70 and 76,880.20 is: 115,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,606.60 : 248,574.70 = 76,880.20 : x
  2. Step 2: Convert to fraction form
    165,606.60/248,574.70 = 76,880.20/x
  3. Step 3: Cross multiply
    165,606.60x = 248,574.70 × 76,880.20
  4. Step 4: Simplify right side
    165,606.60x = 19,110,472,650.94
  5. Step 5: Solve for x
    x = 19,110,472,650.94/165,606.60
  6. Step 6: Final answer
    x = 115,396.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.