Home / 139,341.24-192,290.22-75,679.02

Finding the Fourth Proportional to 139,341.24, 192,290.22 and 75,679.02

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Solution

The fourth proportional to 139,341.24, 192,290.22 and 75,679.02 is: 104,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,341.24 : 192,290.22 = 75,679.02 : x
  2. Step 2: Convert to fraction form
    139,341.24/192,290.22 = 75,679.02/x
  3. Step 3: Cross multiply
    139,341.24x = 192,290.22 × 75,679.02
  4. Step 4: Simplify right side
    139,341.24x = 14,552,335,405.18
  5. Step 5: Solve for x
    x = 14,552,335,405.18/139,341.24
  6. Step 6: Final answer
    x = 104,436.67

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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.