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Finding the Fourth Proportional to 141,628, 212,442 and 43,132

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Solution

The fourth proportional to 141,628, 212,442 and 43,132 is: 64,698

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,628 : 212,442 = 43,132 : x
  2. Step 2: Convert to fraction form
    141,628/212,442 = 43,132/x
  3. Step 3: Cross multiply
    141,628x = 212,442 × 43,132
  4. Step 4: Simplify right side
    141,628x = 9,163,048,344
  5. Step 5: Solve for x
    x = 9,163,048,344/141,628
  6. Step 6: Final answer
    x = 64,698

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.