Home / 194,821.40-292,159.20-68,412.80

Finding the Fourth Proportional to 194,821.40, 292,159.20 and 68,412.80

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Solution

The fourth proportional to 194,821.40, 292,159.20 and 68,412.80 is: 102,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,821.40 : 292,159.20 = 68,412.80 : x
  2. Step 2: Convert to fraction form
    194,821.40/292,159.20 = 68,412.80/x
  3. Step 3: Cross multiply
    194,821.40x = 292,159.20 × 68,412.80
  4. Step 4: Simplify right side
    194,821.40x = 19,987,428,917.76
  5. Step 5: Solve for x
    x = 19,987,428,917.76/194,821.40
  6. Step 6: Final answer
    x = 102,593.60

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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.