Home / 141,512.22-195,289.90-77,850

Finding the Fourth Proportional to 141,512.22, 195,289.90 and 77,850

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Solution

The fourth proportional to 141,512.22, 195,289.90 and 77,850 is: 107,434.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,512.22 : 195,289.90 = 77,850 : x
  2. Step 2: Convert to fraction form
    141,512.22/195,289.90 = 77,850/x
  3. Step 3: Cross multiply
    141,512.22x = 195,289.90 × 77,850
  4. Step 4: Simplify right side
    141,512.22x = 15,203,318,715
  5. Step 5: Solve for x
    x = 15,203,318,715/141,512.22
  6. Step 6: Final answer
    x = 107,434.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.