Home / 99,147.09-136,824.03-53,825.49

Finding the Fourth Proportional to 99,147.09, 136,824.03 and 53,825.49

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Solution

The fourth proportional to 99,147.09, 136,824.03 and 53,825.49 is: 74,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,147.09 : 136,824.03 = 53,825.49 : x
  2. Step 2: Convert to fraction form
    99,147.09/136,824.03 = 53,825.49/x
  3. Step 3: Cross multiply
    99,147.09x = 136,824.03 × 53,825.49
  4. Step 4: Simplify right side
    99,147.09x = 7,364,620,458.52
  5. Step 5: Solve for x
    x = 7,364,620,458.52/99,147.09
  6. Step 6: Final answer
    x = 74,279.74

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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.