Home / 153,406.24-211,694.88-85,425.64

Finding the Fourth Proportional to 153,406.24, 211,694.88 and 85,425.64

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Solution

The fourth proportional to 153,406.24, 211,694.88 and 85,425.64 is: 117,884.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,406.24 : 211,694.88 = 85,425.64 : x
  2. Step 2: Convert to fraction form
    153,406.24/211,694.88 = 85,425.64/x
  3. Step 3: Cross multiply
    153,406.24x = 211,694.88 × 85,425.64
  4. Step 4: Simplify right side
    153,406.24x = 18,084,170,608.72
  5. Step 5: Solve for x
    x = 18,084,170,608.72/153,406.24
  6. Step 6: Final answer
    x = 117,884.19

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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.