Home / 142,755.98-197,000.70-79,092.50

Finding the Fourth Proportional to 142,755.98, 197,000.70 and 79,092.50

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Solution

The fourth proportional to 142,755.98, 197,000.70 and 79,092.50 is: 109,146.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,755.98 : 197,000.70 = 79,092.50 : x
  2. Step 2: Convert to fraction form
    142,755.98/197,000.70 = 79,092.50/x
  3. Step 3: Cross multiply
    142,755.98x = 197,000.70 × 79,092.50
  4. Step 4: Simplify right side
    142,755.98x = 15,581,277,864.75
  5. Step 5: Solve for x
    x = 15,581,277,864.75/142,755.98
  6. Step 6: Final answer
    x = 109,146.24

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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.