Home / 102,017.51-140,781.36-56,694.35

Finding the Fourth Proportional to 102,017.51, 140,781.36 and 56,694.35

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Solution

The fourth proportional to 102,017.51, 140,781.36 and 56,694.35 is: 78,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,017.51 : 140,781.36 = 56,694.35 : x
  2. Step 2: Convert to fraction form
    102,017.51/140,781.36 = 56,694.35/x
  3. Step 3: Cross multiply
    102,017.51x = 140,781.36 × 56,694.35
  4. Step 4: Simplify right side
    102,017.51x = 7,981,507,942.97
  5. Step 5: Solve for x
    x = 7,981,507,942.97/102,017.51
  6. Step 6: Final answer
    x = 78,236.64

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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.