Home / 139,675.56-192,752.28-76,011.96

Finding the Fourth Proportional to 139,675.56, 192,752.28 and 76,011.96

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Solution

The fourth proportional to 139,675.56, 192,752.28 and 76,011.96 is: 104,896.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,675.56 : 192,752.28 = 76,011.96 : x
  2. Step 2: Convert to fraction form
    139,675.56/192,752.28 = 76,011.96/x
  3. Step 3: Cross multiply
    139,675.56x = 192,752.28 × 76,011.96
  4. Step 4: Simplify right side
    139,675.56x = 14,651,478,597.27
  5. Step 5: Solve for x
    x = 14,651,478,597.27/139,675.56
  6. Step 6: Final answer
    x = 104,896.51

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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.