Home / 172,938.50-259,415.70-52,986.86

Finding the Fourth Proportional to 172,938.50, 259,415.70 and 52,986.86

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Solution

The fourth proportional to 172,938.50, 259,415.70 and 52,986.86 is: 79,482.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,938.50 : 259,415.70 = 52,986.86 : x
  2. Step 2: Convert to fraction form
    172,938.50/259,415.70 = 52,986.86/x
  3. Step 3: Cross multiply
    172,938.50x = 259,415.70 × 52,986.86
  4. Step 4: Simplify right side
    172,938.50x = 13,745,623,377.70
  5. Step 5: Solve for x
    x = 13,745,623,377.70/172,938.50
  6. Step 6: Final answer
    x = 79,482.73

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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.