Home / 139,860.61-193,007.67-76,198.41

Finding the Fourth Proportional to 139,860.61, 193,007.67 and 76,198.41

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Solution

The fourth proportional to 139,860.61, 193,007.67 and 76,198.41 is: 105,153.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,860.61 : 193,007.67 = 76,198.41 : x
  2. Step 2: Convert to fraction form
    139,860.61/193,007.67 = 76,198.41/x
  3. Step 3: Cross multiply
    139,860.61x = 193,007.67 × 76,198.41
  4. Step 4: Simplify right side
    139,860.61x = 14,706,877,286.06
  5. Step 5: Solve for x
    x = 14,706,877,286.06/139,860.61
  6. Step 6: Final answer
    x = 105,153.82

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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.