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Finding the Fourth Proportional to 101,673.72, 152,228.88 and 76,637.88

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Solution

The fourth proportional to 101,673.72, 152,228.88 and 76,637.88 is: 114,744.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,673.72 : 152,228.88 = 76,637.88 : x
  2. Step 2: Convert to fraction form
    101,673.72/152,228.88 = 76,637.88/x
  3. Step 3: Cross multiply
    101,673.72x = 152,228.88 × 76,637.88
  4. Step 4: Simplify right side
    101,673.72x = 11,666,498,637.97
  5. Step 5: Solve for x
    x = 11,666,498,637.97/101,673.72
  6. Step 6: Final answer
    x = 114,744.48

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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.