Home / 139,761.07-192,870.74-76,099.25

Finding the Fourth Proportional to 139,761.07, 192,870.74 and 76,099.25

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Solution

The fourth proportional to 139,761.07, 192,870.74 and 76,099.25 is: 105,017.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,761.07 : 192,870.74 = 76,099.25 : x
  2. Step 2: Convert to fraction form
    139,761.07/192,870.74 = 76,099.25/x
  3. Step 3: Cross multiply
    139,761.07x = 192,870.74 × 76,099.25
  4. Step 4: Simplify right side
    139,761.07x = 14,677,318,660.95
  5. Step 5: Solve for x
    x = 14,677,318,660.95/139,761.07
  6. Step 6: Final answer
    x = 105,017.22

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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.