Home / 99,693.74-137,696.82-72,793.64

Finding the Fourth Proportional to 99,693.74, 137,696.82 and 72,793.64

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Solution

The fourth proportional to 99,693.74, 137,696.82 and 72,793.64 is: 100,542.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,693.74 : 137,696.82 = 72,793.64 : x
  2. Step 2: Convert to fraction form
    99,693.74/137,696.82 = 72,793.64/x
  3. Step 3: Cross multiply
    99,693.74x = 137,696.82 × 72,793.64
  4. Step 4: Simplify right side
    99,693.74x = 10,023,452,744.22
  5. Step 5: Solve for x
    x = 10,023,452,744.22/99,693.74
  6. Step 6: Final answer
    x = 100,542.45

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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.