Home / 120,835.67-166,715.61-69,829.82

Finding the Fourth Proportional to 120,835.67, 166,715.61 and 69,829.82

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Solution

The fourth proportional to 120,835.67, 166,715.61 and 69,829.82 is: 96,343.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,835.67 : 166,715.61 = 69,829.82 : x
  2. Step 2: Convert to fraction form
    120,835.67/166,715.61 = 69,829.82/x
  3. Step 3: Cross multiply
    120,835.67x = 166,715.61 × 69,829.82
  4. Step 4: Simplify right side
    120,835.67x = 11,641,721,037.49
  5. Step 5: Solve for x
    x = 11,641,721,037.49/120,835.67
  6. Step 6: Final answer
    x = 96,343.41

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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.