Home / 210,671.26-290,729.18-115,177.72

Finding the Fourth Proportional to 210,671.26, 290,729.18 and 115,177.72

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Solution

The fourth proportional to 210,671.26, 290,729.18 and 115,177.72 is: 158,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,671.26 : 290,729.18 = 115,177.72 : x
  2. Step 2: Convert to fraction form
    210,671.26/290,729.18 = 115,177.72/x
  3. Step 3: Cross multiply
    210,671.26x = 290,729.18 × 115,177.72
  4. Step 4: Simplify right side
    210,671.26x = 33,485,524,089.87
  5. Step 5: Solve for x
    x = 33,485,524,089.87/210,671.26
  6. Step 6: Final answer
    x = 158,946.81

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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.