Home / 139,908.73-193,068.39-76,245.16

Finding the Fourth Proportional to 139,908.73, 193,068.39 and 76,245.16

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Solution

The fourth proportional to 139,908.73, 193,068.39 and 76,245.16 is: 105,215.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,908.73 : 193,068.39 = 76,245.16 : x
  2. Step 2: Convert to fraction form
    139,908.73/193,068.39 = 76,245.16/x
  3. Step 3: Cross multiply
    139,908.73x = 193,068.39 × 76,245.16
  4. Step 4: Simplify right side
    139,908.73x = 14,720,529,321.15
  5. Step 5: Solve for x
    x = 14,720,529,321.15/139,908.73
  6. Step 6: Final answer
    x = 105,215.23

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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.