Home / 139,743.48-192,850.04-76,082.36

Finding the Fourth Proportional to 139,743.48, 192,850.04 and 76,082.36

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Solution

The fourth proportional to 139,743.48, 192,850.04 and 76,082.36 is: 104,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,743.48 : 192,850.04 = 76,082.36 : x
  2. Step 2: Convert to fraction form
    139,743.48/192,850.04 = 76,082.36/x
  3. Step 3: Cross multiply
    139,743.48x = 192,850.04 × 76,082.36
  4. Step 4: Simplify right side
    139,743.48x = 14,672,486,169.29
  5. Step 5: Solve for x
    x = 14,672,486,169.29/139,743.48
  6. Step 6: Final answer
    x = 104,995.86

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1.5x scale

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.