Home / 165,630.54-248,344.56-81,283.62

Finding the Fourth Proportional to 165,630.54, 248,344.56 and 81,283.62

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Solution

The fourth proportional to 165,630.54, 248,344.56 and 81,283.62 is: 121,875.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,630.54 : 248,344.56 = 81,283.62 : x
  2. Step 2: Convert to fraction form
    165,630.54/248,344.56 = 81,283.62/x
  3. Step 3: Cross multiply
    165,630.54x = 248,344.56 × 81,283.62
  4. Step 4: Simplify right side
    165,630.54x = 20,186,344,844.11
  5. Step 5: Solve for x
    x = 20,186,344,844.11/165,630.54
  6. Step 6: Final answer
    x = 121,875.74

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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.