Home / 152,919.75-211,029.26-85,851.75

Finding the Fourth Proportional to 152,919.75, 211,029.26 and 85,851.75

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Solution

The fourth proportional to 152,919.75, 211,029.26 and 85,851.75 is: 118,475.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,919.75 : 211,029.26 = 85,851.75 : x
  2. Step 2: Convert to fraction form
    152,919.75/211,029.26 = 85,851.75/x
  3. Step 3: Cross multiply
    152,919.75x = 211,029.26 × 85,851.75
  4. Step 4: Simplify right side
    152,919.75x = 18,117,231,272.21
  5. Step 5: Solve for x
    x = 18,117,231,272.21/152,919.75
  6. Step 6: Final answer
    x = 118,475.42

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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.