Home / 99,408.44-137,028.02-67,521.98

Finding the Fourth Proportional to 99,408.44, 137,028.02 and 67,521.98

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Solution

The fourth proportional to 99,408.44, 137,028.02 and 67,521.98 is: 93,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,408.44 : 137,028.02 = 67,521.98 : x
  2. Step 2: Convert to fraction form
    99,408.44/137,028.02 = 67,521.98/x
  3. Step 3: Cross multiply
    99,408.44x = 137,028.02 × 67,521.98
  4. Step 4: Simplify right side
    99,408.44x = 9,252,403,225.88
  5. Step 5: Solve for x
    x = 9,252,403,225.88/99,408.44
  6. Step 6: Final answer
    x = 93,074.62

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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.