Home / 140,825.12-211,238.08-40,987.76

Finding the Fourth Proportional to 140,825.12, 211,238.08 and 40,987.76

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Solution

The fourth proportional to 140,825.12, 211,238.08 and 40,987.76 is: 61,481.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,825.12 : 211,238.08 = 40,987.76 : x
  2. Step 2: Convert to fraction form
    140,825.12/211,238.08 = 40,987.76/x
  3. Step 3: Cross multiply
    140,825.12x = 211,238.08 × 40,987.76
  4. Step 4: Simplify right side
    140,825.12x = 8,658,174,567.24
  5. Step 5: Solve for x
    x = 8,658,174,567.24/140,825.12
  6. Step 6: Final answer
    x = 61,481.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.