Home / 141,939.64-212,921.75-52,006.78

Finding the Fourth Proportional to 141,939.64, 212,921.75 and 52,006.78

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Solution

The fourth proportional to 141,939.64, 212,921.75 and 52,006.78 is: 78,014.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,939.64 : 212,921.75 = 52,006.78 : x
  2. Step 2: Convert to fraction form
    141,939.64/212,921.75 = 52,006.78/x
  3. Step 3: Cross multiply
    141,939.64x = 212,921.75 × 52,006.78
  4. Step 4: Simplify right side
    141,939.64x = 11,073,374,609.47
  5. Step 5: Solve for x
    x = 11,073,374,609.47/141,939.64
  6. Step 6: Final answer
    x = 78,014.67

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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.