Home / 139,962.63-193,128.95-82,604.36

Finding the Fourth Proportional to 139,962.63, 193,128.95 and 82,604.36

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Solution

The fourth proportional to 139,962.63, 193,128.95 and 82,604.36 is: 113,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,962.63 : 193,128.95 = 82,604.36 : x
  2. Step 2: Convert to fraction form
    139,962.63/193,128.95 = 82,604.36/x
  3. Step 3: Cross multiply
    139,962.63x = 193,128.95 × 82,604.36
  4. Step 4: Simplify right side
    139,962.63x = 15,953,291,933.56
  5. Step 5: Solve for x
    x = 15,953,291,933.56/139,962.63
  6. Step 6: Final answer
    x = 113,982.51

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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.