Home / 140,932.47-211,398.71-121,900.55

Finding the Fourth Proportional to 140,932.47, 211,398.71 and 121,900.55

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Solution

The fourth proportional to 140,932.47, 211,398.71 and 121,900.55 is: 182,850.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,932.47 : 211,398.71 = 121,900.55 : x
  2. Step 2: Convert to fraction form
    140,932.47/211,398.71 = 121,900.55/x
  3. Step 3: Cross multiply
    140,932.47x = 211,398.71 × 121,900.55
  4. Step 4: Simplify right side
    140,932.47x = 25,769,617,351.79
  5. Step 5: Solve for x
    x = 25,769,617,351.79/140,932.47
  6. Step 6: Final answer
    x = 182,850.82

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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.