Home / 139,209.52-192,109.40-82,632.24

Finding the Fourth Proportional to 139,209.52, 192,109.40 and 82,632.24

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Solution

The fourth proportional to 139,209.52, 192,109.40 and 82,632.24 is: 114,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,209.52 : 192,109.40 = 82,632.24 : x
  2. Step 2: Convert to fraction form
    139,209.52/192,109.40 = 82,632.24/x
  3. Step 3: Cross multiply
    139,209.52x = 192,109.40 × 82,632.24
  4. Step 4: Simplify right side
    139,209.52x = 15,874,430,047.06
  5. Step 5: Solve for x
    x = 15,874,430,047.06/139,209.52
  6. Step 6: Final answer
    x = 114,032.65

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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.