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Finding the Fourth Proportional to 70,765.52, 106,148.28 and 18,175.06

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Solution

The fourth proportional to 70,765.52, 106,148.28 and 18,175.06 is: 27,262.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,765.52 : 106,148.28 = 18,175.06 : x
  2. Step 2: Convert to fraction form
    70,765.52/106,148.28 = 18,175.06/x
  3. Step 3: Cross multiply
    70,765.52x = 106,148.28 × 18,175.06
  4. Step 4: Simplify right side
    70,765.52x = 1,929,250,827.16
  5. Step 5: Solve for x
    x = 1,929,250,827.16/70,765.52
  6. Step 6: Final answer
    x = 27,262.58

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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.