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Finding the Fourth Proportional to 164,977.80, 247,029.30 and 129,985.80

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Solution

The fourth proportional to 164,977.80, 247,029.30 and 129,985.80 is: 194,634.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,977.80 : 247,029.30 = 129,985.80 : x
  2. Step 2: Convert to fraction form
    164,977.80/247,029.30 = 129,985.80/x
  3. Step 3: Cross multiply
    164,977.80x = 247,029.30 × 129,985.80
  4. Step 4: Simplify right side
    164,977.80x = 32,110,301,183.94
  5. Step 5: Solve for x
    x = 32,110,301,183.94/164,977.80
  6. Step 6: Final answer
    x = 194,634.07

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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.