Home / 142,755.06-197,002.08-79,093.92

Finding the Fourth Proportional to 142,755.06, 197,002.08 and 79,093.92

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Solution

The fourth proportional to 142,755.06, 197,002.08 and 79,093.92 is: 109,149.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,755.06 : 197,002.08 = 79,093.92 : x
  2. Step 2: Convert to fraction form
    142,755.06/197,002.08 = 79,093.92/x
  3. Step 3: Cross multiply
    142,755.06x = 197,002.08 × 79,093.92
  4. Step 4: Simplify right side
    142,755.06x = 15,581,666,755.35
  5. Step 5: Solve for x
    x = 15,581,666,755.35/142,755.06
  6. Step 6: Final answer
    x = 109,149.66

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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.