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Finding the Fourth Proportional to 123,071.64, 169,843.86 and 69,358.92

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Solution

The fourth proportional to 123,071.64, 169,843.86 and 69,358.92 is: 95,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,071.64 : 169,843.86 = 69,358.92 : x
  2. Step 2: Convert to fraction form
    123,071.64/169,843.86 = 69,358.92/x
  3. Step 3: Cross multiply
    123,071.64x = 169,843.86 × 69,358.92
  4. Step 4: Simplify right side
    123,071.64x = 11,780,186,698.23
  5. Step 5: Solve for x
    x = 11,780,186,698.23/123,071.64
  6. Step 6: Final answer
    x = 95,718.13

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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.