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Finding the Fourth Proportional to 100,686.51, 150,935.40 and 34,079.99

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Solution

The fourth proportional to 100,686.51, 150,935.40 and 34,079.99 is: 51,088.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,686.51 : 150,935.40 = 34,079.99 : x
  2. Step 2: Convert to fraction form
    100,686.51/150,935.40 = 34,079.99/x
  3. Step 3: Cross multiply
    100,686.51x = 150,935.40 × 34,079.99
  4. Step 4: Simplify right side
    100,686.51x = 5,143,876,167.97
  5. Step 5: Solve for x
    x = 5,143,876,167.97/100,686.51
  6. Step 6: Final answer
    x = 51,088.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.