Home / 165,623.12-248,549.88-72,080.72

Finding the Fourth Proportional to 165,623.12, 248,549.88 and 72,080.72

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Solution

The fourth proportional to 165,623.12, 248,549.88 and 72,080.72 is: 108,171.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,623.12 : 248,549.88 = 72,080.72 : x
  2. Step 2: Convert to fraction form
    165,623.12/248,549.88 = 72,080.72/x
  3. Step 3: Cross multiply
    165,623.12x = 248,549.88 × 72,080.72
  4. Step 4: Simplify right side
    165,623.12x = 17,915,654,306.31
  5. Step 5: Solve for x
    x = 17,915,654,306.31/165,623.12
  6. Step 6: Final answer
    x = 108,171.22

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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.