Home / 99,122.08-136,789.47-53,800.48

Finding the Fourth Proportional to 99,122.08, 136,789.47 and 53,800.48

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Solution

The fourth proportional to 99,122.08, 136,789.47 and 53,800.48 is: 74,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,122.08 : 136,789.47 = 53,800.48 : x
  2. Step 2: Convert to fraction form
    99,122.08/136,789.47 = 53,800.48/x
  3. Step 3: Cross multiply
    99,122.08x = 136,789.47 × 53,800.48
  4. Step 4: Simplify right side
    99,122.08x = 7,359,339,144.95
  5. Step 5: Solve for x
    x = 7,359,339,144.95/99,122.08
  6. Step 6: Final answer
    x = 74,245.20

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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.