Home / 102,922.75-142,033.40-55,818.75

Finding the Fourth Proportional to 102,922.75, 142,033.40 and 55,818.75

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Solution

The fourth proportional to 102,922.75, 142,033.40 and 55,818.75 is: 77,029.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,922.75 : 142,033.40 = 55,818.75 : x
  2. Step 2: Convert to fraction form
    102,922.75/142,033.40 = 55,818.75/x
  3. Step 3: Cross multiply
    102,922.75x = 142,033.40 × 55,818.75
  4. Step 4: Simplify right side
    102,922.75x = 7,928,126,846.25
  5. Step 5: Solve for x
    x = 7,928,126,846.25/102,922.75
  6. Step 6: Final answer
    x = 77,029.88

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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.