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Finding the Fourth Proportional to 122,668.40, 169,300.32 and 68,957.84

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Solution

The fourth proportional to 122,668.40, 169,300.32 and 68,957.84 is: 95,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,668.40 : 169,300.32 = 68,957.84 : x
  2. Step 2: Convert to fraction form
    122,668.40/169,300.32 = 68,957.84/x
  3. Step 3: Cross multiply
    122,668.40x = 169,300.32 × 68,957.84
  4. Step 4: Simplify right side
    122,668.40x = 11,674,584,378.51
  5. Step 5: Solve for x
    x = 11,674,584,378.51/122,668.40
  6. Step 6: Final answer
    x = 95,171.90

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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.