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Finding the Fourth Proportional to 141,953.64, 212,679.90 and 126,508.56

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Solution

The fourth proportional to 141,953.64, 212,679.90 and 126,508.56 is: 189,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,953.64 : 212,679.90 = 126,508.56 : x
  2. Step 2: Convert to fraction form
    141,953.64/212,679.90 = 126,508.56/x
  3. Step 3: Cross multiply
    141,953.64x = 212,679.90 × 126,508.56
  4. Step 4: Simplify right side
    141,953.64x = 26,905,827,889.94
  5. Step 5: Solve for x
    x = 26,905,827,889.94/141,953.64
  6. Step 6: Final answer
    x = 189,539.54

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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.