Home / 152,108.96-209,902.10-84,121.96

Finding the Fourth Proportional to 152,108.96, 209,902.10 and 84,121.96

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Solution

The fourth proportional to 152,108.96, 209,902.10 and 84,121.96 is: 116,083.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,108.96 : 209,902.10 = 84,121.96 : x
  2. Step 2: Convert to fraction form
    152,108.96/209,902.10 = 84,121.96/x
  3. Step 3: Cross multiply
    152,108.96x = 209,902.10 × 84,121.96
  4. Step 4: Simplify right side
    152,108.96x = 17,657,375,114.75
  5. Step 5: Solve for x
    x = 17,657,375,114.75/152,108.96
  6. Step 6: Final answer
    x = 116,083.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.