Home / 139,723.89-192,818.97-76,062.15

Finding the Fourth Proportional to 139,723.89, 192,818.97 and 76,062.15

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Solution

The fourth proportional to 139,723.89, 192,818.97 and 76,062.15 is: 104,965.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,723.89 : 192,818.97 = 76,062.15 : x
  2. Step 2: Convert to fraction form
    139,723.89/192,818.97 = 76,062.15/x
  3. Step 3: Cross multiply
    139,723.89x = 192,818.97 × 76,062.15
  4. Step 4: Simplify right side
    139,723.89x = 14,666,225,418.99
  5. Step 5: Solve for x
    x = 14,666,225,418.99/139,723.89
  6. Step 6: Final answer
    x = 104,965.77

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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.