Home / 142,893.05-197,201.12-79,230.83

Finding the Fourth Proportional to 142,893.05, 197,201.12 and 79,230.83

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Solution

The fourth proportional to 142,893.05, 197,201.12 and 79,230.83 is: 109,343.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,893.05 : 197,201.12 = 79,230.83 : x
  2. Step 2: Convert to fraction form
    142,893.05/197,201.12 = 79,230.83/x
  3. Step 3: Cross multiply
    142,893.05x = 197,201.12 × 79,230.83
  4. Step 4: Simplify right side
    142,893.05x = 15,624,407,032.37
  5. Step 5: Solve for x
    x = 15,624,407,032.37/142,893.05
  6. Step 6: Final answer
    x = 109,343.37

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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.