Home / 185,649.92-278,515.32-105,725.69

Finding the Fourth Proportional to 185,649.92, 278,515.32 and 105,725.69

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Solution

The fourth proportional to 185,649.92, 278,515.32 and 105,725.69 is: 158,611.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,649.92 : 278,515.32 = 105,725.69 : x
  2. Step 2: Convert to fraction form
    185,649.92/278,515.32 = 105,725.69/x
  3. Step 3: Cross multiply
    185,649.92x = 278,515.32 × 105,725.69
  4. Step 4: Simplify right side
    185,649.92x = 29,446,224,382.57
  5. Step 5: Solve for x
    x = 29,446,224,382.57/185,649.92
  6. Step 6: Final answer
    x = 158,611.57

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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.