Home / 139,540.85-192,567.74-75,880.02

Finding the Fourth Proportional to 139,540.85, 192,567.74 and 75,880.02

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Solution

The fourth proportional to 139,540.85, 192,567.74 and 75,880.02 is: 104,715.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,540.85 : 192,567.74 = 75,880.02 : x
  2. Step 2: Convert to fraction form
    139,540.85/192,567.74 = 75,880.02/x
  3. Step 3: Cross multiply
    139,540.85x = 192,567.74 × 75,880.02
  4. Step 4: Simplify right side
    139,540.85x = 14,612,043,214.02
  5. Step 5: Solve for x
    x = 14,612,043,214.02/139,540.85
  6. Step 6: Final answer
    x = 104,715.16

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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.