Home / 99,220.89-136,922.54-53,897.85

Finding the Fourth Proportional to 99,220.89, 136,922.54 and 53,897.85

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Solution

The fourth proportional to 99,220.89, 136,922.54 and 53,897.85 is: 74,377.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,220.89 : 136,922.54 = 53,897.85 : x
  2. Step 2: Convert to fraction form
    99,220.89/136,922.54 = 53,897.85/x
  3. Step 3: Cross multiply
    99,220.89x = 136,922.54 × 53,897.85
  4. Step 4: Simplify right side
    99,220.89x = 7,379,830,253.05
  5. Step 5: Solve for x
    x = 7,379,830,253.05/99,220.89
  6. Step 6: Final answer
    x = 74,377.79

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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.