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Finding the Fourth Proportional to 165,460.80, 248,248.80 and 71,995.20

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Solution

The fourth proportional to 165,460.80, 248,248.80 and 71,995.20 is: 108,017.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,460.80 : 248,248.80 = 71,995.20 : x
  2. Step 2: Convert to fraction form
    165,460.80/248,248.80 = 71,995.20/x
  3. Step 3: Cross multiply
    165,460.80x = 248,248.80 × 71,995.20
  4. Step 4: Simplify right side
    165,460.80x = 17,872,722,005.76
  5. Step 5: Solve for x
    x = 17,872,722,005.76/165,460.80
  6. Step 6: Final answer
    x = 108,017.86

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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.