Home / 142,793.76-197,052.48-79,131.36

Finding the Fourth Proportional to 142,793.76, 197,052.48 and 79,131.36

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Solution

The fourth proportional to 142,793.76, 197,052.48 and 79,131.36 is: 109,199.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,793.76 : 197,052.48 = 79,131.36 : x
  2. Step 2: Convert to fraction form
    142,793.76/197,052.48 = 79,131.36/x
  3. Step 3: Cross multiply
    142,793.76x = 197,052.48 × 79,131.36
  4. Step 4: Simplify right side
    142,793.76x = 15,593,030,733.77
  5. Step 5: Solve for x
    x = 15,593,030,733.77/142,793.76
  6. Step 6: Final answer
    x = 109,199.66

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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.