Home / 142,773.60-197,028.73-79,112.46

Finding the Fourth Proportional to 142,773.60, 197,028.73 and 79,112.46

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Solution

The fourth proportional to 142,773.60, 197,028.73 and 79,112.46 is: 109,175.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,773.60 : 197,028.73 = 79,112.46 : x
  2. Step 2: Convert to fraction form
    142,773.60/197,028.73 = 79,112.46/x
  3. Step 3: Cross multiply
    142,773.60x = 197,028.73 × 79,112.46
  4. Step 4: Simplify right side
    142,773.60x = 15,587,427,520.98
  5. Step 5: Solve for x
    x = 15,587,427,520.98/142,773.60
  6. Step 6: Final answer
    x = 109,175.84

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1.5x scale

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.