Home / 139,975.29-193,167.99-76,314.15

Finding the Fourth Proportional to 139,975.29, 193,167.99 and 76,314.15

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Solution

The fourth proportional to 139,975.29, 193,167.99 and 76,314.15 is: 105,314.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,975.29 : 193,167.99 = 76,314.15 : x
  2. Step 2: Convert to fraction form
    139,975.29/193,167.99 = 76,314.15/x
  3. Step 3: Cross multiply
    139,975.29x = 193,167.99 × 76,314.15
  4. Step 4: Simplify right side
    139,975.29x = 14,741,450,964.06
  5. Step 5: Solve for x
    x = 14,741,450,964.06/139,975.29
  6. Step 6: Final answer
    x = 105,314.67

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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.