Home / 140,447.17-193,818.99-76,784.82

Finding the Fourth Proportional to 140,447.17, 193,818.99 and 76,784.82

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Solution

The fourth proportional to 140,447.17, 193,818.99 and 76,784.82 is: 105,964.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,447.17 : 193,818.99 = 76,784.82 : x
  2. Step 2: Convert to fraction form
    140,447.17/193,818.99 = 76,784.82/x
  3. Step 3: Cross multiply
    140,447.17x = 193,818.99 × 76,784.82
  4. Step 4: Simplify right side
    140,447.17x = 14,882,356,259.73
  5. Step 5: Solve for x
    x = 14,882,356,259.73/140,447.17
  6. Step 6: Final answer
    x = 105,964.09

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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.