Home / 99,935.70-137,913.06-54,615.60

Finding the Fourth Proportional to 99,935.70, 137,913.06 and 54,615.60

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Solution

The fourth proportional to 99,935.70, 137,913.06 and 54,615.60 is: 75,370.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,935.70 : 137,913.06 = 54,615.60 : x
  2. Step 2: Convert to fraction form
    99,935.70/137,913.06 = 54,615.60/x
  3. Step 3: Cross multiply
    99,935.70x = 137,913.06 × 54,615.60
  4. Step 4: Simplify right side
    99,935.70x = 7,532,204,519.74
  5. Step 5: Solve for x
    x = 7,532,204,519.74/99,935.70
  6. Step 6: Final answer
    x = 75,370.51

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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.