Home / 139,670.06-192,744.69-76,006.46

Finding the Fourth Proportional to 139,670.06, 192,744.69 and 76,006.46

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Solution

The fourth proportional to 139,670.06, 192,744.69 and 76,006.46 is: 104,888.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,670.06 : 192,744.69 = 76,006.46 : x
  2. Step 2: Convert to fraction form
    139,670.06/192,744.69 = 76,006.46/x
  3. Step 3: Cross multiply
    139,670.06x = 192,744.69 × 76,006.46
  4. Step 4: Simplify right side
    139,670.06x = 14,649,841,570.70
  5. Step 5: Solve for x
    x = 14,649,841,570.70/139,670.06
  6. Step 6: Final answer
    x = 104,888.92

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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.