Home / 129,039.30-193,558.86-40,300.41

Finding the Fourth Proportional to 129,039.30, 193,558.86 and 40,300.41

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Solution

The fourth proportional to 129,039.30, 193,558.86 and 40,300.41 is: 60,450.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,039.30 : 193,558.86 = 40,300.41 : x
  2. Step 2: Convert to fraction form
    129,039.30/193,558.86 = 40,300.41/x
  3. Step 3: Cross multiply
    129,039.30x = 193,558.86 × 40,300.41
  4. Step 4: Simplify right side
    129,039.30x = 7,800,501,417.13
  5. Step 5: Solve for x
    x = 7,800,501,417.13/129,039.30
  6. Step 6: Final answer
    x = 60,450.59

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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.