Home / 204,975.40-307,463.10-72,005.80

Finding the Fourth Proportional to 204,975.40, 307,463.10 and 72,005.80

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Solution

The fourth proportional to 204,975.40, 307,463.10 and 72,005.80 is: 108,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,975.40 : 307,463.10 = 72,005.80 : x
  2. Step 2: Convert to fraction form
    204,975.40/307,463.10 = 72,005.80/x
  3. Step 3: Cross multiply
    204,975.40x = 307,463.10 × 72,005.80
  4. Step 4: Simplify right side
    204,975.40x = 22,139,126,485.98
  5. Step 5: Solve for x
    x = 22,139,126,485.98/204,975.40
  6. Step 6: Final answer
    x = 108,008.70

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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.