Home / 142,773.15-197,024-79,110.39

Finding the Fourth Proportional to 142,773.15, 197,024 and 79,110.39

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Solution

The fourth proportional to 142,773.15, 197,024 and 79,110.39 is: 109,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,773.15 : 197,024 = 79,110.39 : x
  2. Step 2: Convert to fraction form
    142,773.15/197,024 = 79,110.39/x
  3. Step 3: Cross multiply
    142,773.15x = 197,024 × 79,110.39
  4. Step 4: Simplify right side
    142,773.15x = 15,586,644,494.24
  5. Step 5: Solve for x
    x = 15,586,644,494.24/142,773.15
  6. Step 6: Final answer
    x = 109,170.70

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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.