Home / 122,905.90-169,609.97-69,208.27

Finding the Fourth Proportional to 122,905.90, 169,609.97 and 69,208.27

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Solution

The fourth proportional to 122,905.90, 169,609.97 and 69,208.27 is: 95,507.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,905.90 : 169,609.97 = 69,208.27 : x
  2. Step 2: Convert to fraction form
    122,905.90/169,609.97 = 69,208.27/x
  3. Step 3: Cross multiply
    122,905.90x = 169,609.97 × 69,208.27
  4. Step 4: Simplify right side
    122,905.90x = 11,738,412,347.45
  5. Step 5: Solve for x
    x = 11,738,412,347.45/122,905.90
  6. Step 6: Final answer
    x = 95,507.32

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1.5x scale

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.