Home / 210,623.94-315,770.67-105,511.86

Finding the Fourth Proportional to 210,623.94, 315,770.67 and 105,511.86

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Solution

The fourth proportional to 210,623.94, 315,770.67 and 105,511.86 is: 158,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,623.94 : 315,770.67 = 105,511.86 : x
  2. Step 2: Convert to fraction form
    210,623.94/315,770.67 = 105,511.86/x
  3. Step 3: Cross multiply
    210,623.94x = 315,770.67 × 105,511.86
  4. Step 4: Simplify right side
    210,623.94x = 33,317,550,725.15
  5. Step 5: Solve for x
    x = 33,317,550,725.15/210,623.94
  6. Step 6: Final answer
    x = 158,185.01

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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.