Home / 122,861.40-169,554.18-69,149.89

Finding the Fourth Proportional to 122,861.40, 169,554.18 and 69,149.89

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Solution

The fourth proportional to 122,861.40, 169,554.18 and 69,149.89 is: 95,429.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,861.40 : 169,554.18 = 69,149.89 : x
  2. Step 2: Convert to fraction form
    122,861.40/169,554.18 = 69,149.89/x
  3. Step 3: Cross multiply
    122,861.40x = 169,554.18 × 69,149.89
  4. Step 4: Simplify right side
    122,861.40x = 11,724,653,367.30
  5. Step 5: Solve for x
    x = 11,724,653,367.30/122,861.40
  6. Step 6: Final answer
    x = 95,429.92

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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.