Home / 99,683.39-137,559.22-56,668.52

Finding the Fourth Proportional to 99,683.39, 137,559.22 and 56,668.52

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Solution

The fourth proportional to 99,683.39, 137,559.22 and 56,668.52 is: 78,200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,683.39 : 137,559.22 = 56,668.52 : x
  2. Step 2: Convert to fraction form
    99,683.39/137,559.22 = 56,668.52/x
  3. Step 3: Cross multiply
    99,683.39x = 137,559.22 × 56,668.52
  4. Step 4: Simplify right side
    99,683.39x = 7,795,277,611.98
  5. Step 5: Solve for x
    x = 7,795,277,611.98/99,683.39
  6. Step 6: Final answer
    x = 78,200.36

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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.