Home / 140,529.64-193,926.78-76,866.06

Finding the Fourth Proportional to 140,529.64, 193,926.78 and 76,866.06

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Solution

The fourth proportional to 140,529.64, 193,926.78 and 76,866.06 is: 106,072.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,529.64 : 193,926.78 = 76,866.06 : x
  2. Step 2: Convert to fraction form
    140,529.64/193,926.78 = 76,866.06/x
  3. Step 3: Cross multiply
    140,529.64x = 193,926.78 × 76,866.06
  4. Step 4: Simplify right side
    140,529.64x = 14,906,387,507.09
  5. Step 5: Solve for x
    x = 14,906,387,507.09/140,529.64
  6. Step 6: Final answer
    x = 106,072.91

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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.