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Finding the Fourth Proportional to 142,404.40, 213,606.60 and 123,972.40

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Solution

The fourth proportional to 142,404.40, 213,606.60 and 123,972.40 is: 185,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,404.40 : 213,606.60 = 123,972.40 : x
  2. Step 2: Convert to fraction form
    142,404.40/213,606.60 = 123,972.40/x
  3. Step 3: Cross multiply
    142,404.40x = 213,606.60 × 123,972.40
  4. Step 4: Simplify right side
    142,404.40x = 26,481,322,857.84
  5. Step 5: Solve for x
    x = 26,481,322,857.84/142,404.40
  6. Step 6: Final answer
    x = 185,958.60

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1.5x scale

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.