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Finding the Fourth Proportional to 122,609.82, 169,192.35 and 68,886.30

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Solution

The fourth proportional to 122,609.82, 169,192.35 and 68,886.30 is: 95,057.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,609.82 : 169,192.35 = 68,886.30 : x
  2. Step 2: Convert to fraction form
    122,609.82/169,192.35 = 68,886.30/x
  3. Step 3: Cross multiply
    122,609.82x = 169,192.35 × 68,886.30
  4. Step 4: Simplify right side
    122,609.82x = 11,655,034,979.81
  5. Step 5: Solve for x
    x = 11,655,034,979.81/122,609.82
  6. Step 6: Final answer
    x = 95,057.92

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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.