Home / 99,200.36-136,897.49-53,879.22

Finding the Fourth Proportional to 99,200.36, 136,897.49 and 53,879.22

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Solution

The fourth proportional to 99,200.36, 136,897.49 and 53,879.22 is: 74,353.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,200.36 : 136,897.49 = 53,879.22 : x
  2. Step 2: Convert to fraction form
    99,200.36/136,897.49 = 53,879.22/x
  3. Step 3: Cross multiply
    99,200.36x = 136,897.49 × 53,879.22
  4. Step 4: Simplify right side
    99,200.36x = 7,375,930,115.86
  5. Step 5: Solve for x
    x = 7,375,930,115.86/99,200.36
  6. Step 6: Final answer
    x = 74,353.86

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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.