Home / 142,761.06-197,010.36-79,099.92

Finding the Fourth Proportional to 142,761.06, 197,010.36 and 79,099.92

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Solution

The fourth proportional to 142,761.06, 197,010.36 and 79,099.92 is: 109,157.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,761.06 : 197,010.36 = 79,099.92 : x
  2. Step 2: Convert to fraction form
    142,761.06/197,010.36 = 79,099.92/x
  3. Step 3: Cross multiply
    142,761.06x = 197,010.36 × 79,099.92
  4. Step 4: Simplify right side
    142,761.06x = 15,583,503,715.17
  5. Step 5: Solve for x
    x = 15,583,503,715.17/142,761.06
  6. Step 6: Final answer
    x = 109,157.94

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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.