Home / 99,425.02-137,212.44-56,986.30

Finding the Fourth Proportional to 99,425.02, 137,212.44 and 56,986.30

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Solution

The fourth proportional to 99,425.02, 137,212.44 and 56,986.30 is: 78,644.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,425.02 : 137,212.44 = 56,986.30 : x
  2. Step 2: Convert to fraction form
    99,425.02/137,212.44 = 56,986.30/x
  3. Step 3: Cross multiply
    99,425.02x = 137,212.44 × 56,986.30
  4. Step 4: Simplify right side
    99,425.02x = 7,819,229,269.57
  5. Step 5: Solve for x
    x = 7,819,229,269.57/99,425.02
  6. Step 6: Final answer
    x = 78,644.48

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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.