Home / 139,725.34-192,791.07-83,125.66

Finding the Fourth Proportional to 139,725.34, 192,791.07 and 83,125.66

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Solution

The fourth proportional to 139,725.34, 192,791.07 and 83,125.66 is: 114,695.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,725.34 : 192,791.07 = 83,125.66 : x
  2. Step 2: Convert to fraction form
    139,725.34/192,791.07 = 83,125.66/x
  3. Step 3: Cross multiply
    139,725.34x = 192,791.07 × 83,125.66
  4. Step 4: Simplify right side
    139,725.34x = 16,025,884,935.86
  5. Step 5: Solve for x
    x = 16,025,884,935.86/139,725.34
  6. Step 6: Final answer
    x = 114,695.62

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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.