Home / 165,418.81-248,152.82-76,681.28

Finding the Fourth Proportional to 165,418.81, 248,152.82 and 76,681.28

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Solution

The fourth proportional to 165,418.81, 248,152.82 and 76,681.28 is: 115,033.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,418.81 : 248,152.82 = 76,681.28 : x
  2. Step 2: Convert to fraction form
    165,418.81/248,152.82 = 76,681.28/x
  3. Step 3: Cross multiply
    165,418.81x = 248,152.82 × 76,681.28
  4. Step 4: Simplify right side
    165,418.81x = 19,028,676,110.19
  5. Step 5: Solve for x
    x = 19,028,676,110.19/165,418.81
  6. Step 6: Final answer
    x = 115,033.33

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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.