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Finding the Fourth Proportional to 122,755.66, 169,383.28 and 69,030.29

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Solution

The fourth proportional to 122,755.66, 169,383.28 and 69,030.29 is: 95,250.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,755.66 : 169,383.28 = 69,030.29 : x
  2. Step 2: Convert to fraction form
    122,755.66/169,383.28 = 69,030.29/x
  3. Step 3: Cross multiply
    122,755.66x = 169,383.28 × 69,030.29
  4. Step 4: Simplify right side
    122,755.66x = 11,692,576,939.55
  5. Step 5: Solve for x
    x = 11,692,576,939.55/122,755.66
  6. Step 6: Final answer
    x = 95,250.82

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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.