Home / 445,867.56-668,937.42-142,253.64

Finding the Fourth Proportional to 445,867.56, 668,937.42 and 142,253.64

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Solution

The fourth proportional to 445,867.56, 668,937.42 and 142,253.64 is: 213,423.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,867.56 : 668,937.42 = 142,253.64 : x
  2. Step 2: Convert to fraction form
    445,867.56/668,937.42 = 142,253.64/x
  3. Step 3: Cross multiply
    445,867.56x = 668,937.42 × 142,253.64
  4. Step 4: Simplify right side
    445,867.56x = 95,158,782,927.21
  5. Step 5: Solve for x
    x = 95,158,782,927.21/445,867.56
  6. Step 6: Final answer
    x = 213,423.88

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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.