Home / 142,426.78-196,598.42-82,021.47

Finding the Fourth Proportional to 142,426.78, 196,598.42 and 82,021.47

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Solution

The fourth proportional to 142,426.78, 196,598.42 and 82,021.47 is: 113,218.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,426.78 : 196,598.42 = 82,021.47 : x
  2. Step 2: Convert to fraction form
    142,426.78/196,598.42 = 82,021.47/x
  3. Step 3: Cross multiply
    142,426.78x = 196,598.42 × 82,021.47
  4. Step 4: Simplify right side
    142,426.78x = 16,125,291,408.08
  5. Step 5: Solve for x
    x = 16,125,291,408.08/142,426.78
  6. Step 6: Final answer
    x = 113,218.11

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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.