Home / 139,731.44-192,829.16-76,069.04

Finding the Fourth Proportional to 139,731.44, 192,829.16 and 76,069.04

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Solution

The fourth proportional to 139,731.44, 192,829.16 and 76,069.04 is: 104,975.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,731.44 : 192,829.16 = 76,069.04 : x
  2. Step 2: Convert to fraction form
    139,731.44/192,829.16 = 76,069.04/x
  3. Step 3: Cross multiply
    139,731.44x = 192,829.16 × 76,069.04
  4. Step 4: Simplify right side
    139,731.44x = 14,668,329,085.21
  5. Step 5: Solve for x
    x = 14,668,329,085.21/139,731.44
  6. Step 6: Final answer
    x = 104,975.15

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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.