Home / 122,764.92-169,394.40-69,045.72

Finding the Fourth Proportional to 122,764.92, 169,394.40 and 69,045.72

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Solution

The fourth proportional to 122,764.92, 169,394.40 and 69,045.72 is: 95,271.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,764.92 : 169,394.40 = 69,045.72 : x
  2. Step 2: Convert to fraction form
    122,764.92/169,394.40 = 69,045.72/x
  3. Step 3: Cross multiply
    122,764.92x = 169,394.40 × 69,045.72
  4. Step 4: Simplify right side
    122,764.92x = 11,695,958,311.97
  5. Step 5: Solve for x
    x = 11,695,958,311.97/122,764.92
  6. Step 6: Final answer
    x = 95,271.18

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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.