Home / 165,605.84-248,242.66-76,921.63

Finding the Fourth Proportional to 165,605.84, 248,242.66 and 76,921.63

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Solution

The fourth proportional to 165,605.84, 248,242.66 and 76,921.63 is: 115,305.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,605.84 : 248,242.66 = 76,921.63 : x
  2. Step 2: Convert to fraction form
    165,605.84/248,242.66 = 76,921.63/x
  3. Step 3: Cross multiply
    165,605.84x = 248,242.66 × 76,921.63
  4. Step 4: Simplify right side
    165,605.84x = 19,095,230,042.74
  5. Step 5: Solve for x
    x = 19,095,230,042.74/165,605.84
  6. Step 6: Final answer
    x = 115,305.29

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1.5x scale

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.