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Finding the Fourth Proportional to 139,959.84, 193,144.53 and 76,297.62

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Solution

The fourth proportional to 139,959.84, 193,144.53 and 76,297.62 is: 105,290.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,959.84 : 193,144.53 = 76,297.62 : x
  2. Step 2: Convert to fraction form
    139,959.84/193,144.53 = 76,297.62/x
  3. Step 3: Cross multiply
    139,959.84x = 193,144.53 × 76,297.62
  4. Step 4: Simplify right side
    139,959.84x = 14,736,467,955.02
  5. Step 5: Solve for x
    x = 14,736,467,955.02/139,959.84
  6. Step 6: Final answer
    x = 105,290.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.