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Finding the Fourth Proportional to 165,675.80, 248,319.30 and 70,905.80

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Solution

The fourth proportional to 165,675.80, 248,319.30 and 70,905.80 is: 106,275.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,675.80 : 248,319.30 = 70,905.80 : x
  2. Step 2: Convert to fraction form
    165,675.80/248,319.30 = 70,905.80/x
  3. Step 3: Cross multiply
    165,675.80x = 248,319.30 × 70,905.80
  4. Step 4: Simplify right side
    165,675.80x = 17,607,278,621.94
  5. Step 5: Solve for x
    x = 17,607,278,621.94/165,675.80
  6. Step 6: Final answer
    x = 106,275.50

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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.