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Finding the Fourth Proportional to 122,795.39, 169,457.39 and 69,080.45

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Solution

The fourth proportional to 122,795.39, 169,457.39 and 69,080.45 is: 95,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,795.39 : 169,457.39 = 69,080.45 : x
  2. Step 2: Convert to fraction form
    122,795.39/169,457.39 = 69,080.45/x
  3. Step 3: Cross multiply
    122,795.39x = 169,457.39 × 69,080.45
  4. Step 4: Simplify right side
    122,795.39x = 11,706,191,564.34
  5. Step 5: Solve for x
    x = 11,706,191,564.34/122,795.39
  6. Step 6: Final answer
    x = 95,330.87

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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.