Home / 131,394.48-197,329.30-121,388.46

Finding the Fourth Proportional to 131,394.48, 197,329.30 and 121,388.46

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Solution

The fourth proportional to 131,394.48, 197,329.30 and 121,388.46 is: 182,302.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,394.48 : 197,329.30 = 121,388.46 : x
  2. Step 2: Convert to fraction form
    131,394.48/197,329.30 = 121,388.46/x
  3. Step 3: Cross multiply
    131,394.48x = 197,329.30 × 121,388.46
  4. Step 4: Simplify right side
    131,394.48x = 23,953,499,839.88
  5. Step 5: Solve for x
    x = 23,953,499,839.88/131,394.48
  6. Step 6: Final answer
    x = 182,302.18

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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.