Home / 102,954.75-142,079.96-57,631.59

Finding the Fourth Proportional to 102,954.75, 142,079.96 and 57,631.59

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Solution

The fourth proportional to 102,954.75, 142,079.96 and 57,631.59 is: 79,532.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,954.75 : 142,079.96 = 57,631.59 : x
  2. Step 2: Convert to fraction form
    102,954.75/142,079.96 = 57,631.59/x
  3. Step 3: Cross multiply
    102,954.75x = 142,079.96 × 57,631.59
  4. Step 4: Simplify right side
    102,954.75x = 8,188,293,713.78
  5. Step 5: Solve for x
    x = 8,188,293,713.78/102,954.75
  6. Step 6: Final answer
    x = 79,532.94

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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.