Home / 139,963.12-193,090.95-82,579.66

Finding the Fourth Proportional to 139,963.12, 193,090.95 and 82,579.66

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Solution

The fourth proportional to 139,963.12, 193,090.95 and 82,579.66 is: 113,925.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,963.12 : 193,090.95 = 82,579.66 : x
  2. Step 2: Convert to fraction form
    139,963.12/193,090.95 = 82,579.66/x
  3. Step 3: Cross multiply
    139,963.12x = 193,090.95 × 82,579.66
  4. Step 4: Simplify right side
    139,963.12x = 15,945,385,000.08
  5. Step 5: Solve for x
    x = 15,945,385,000.08/139,963.12
  6. Step 6: Final answer
    x = 113,925.62

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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.