Home / 99,120.22-136,787.94-56,099.71

Finding the Fourth Proportional to 99,120.22, 136,787.94 and 56,099.71

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Solution

The fourth proportional to 99,120.22, 136,787.94 and 56,099.71 is: 77,418.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,120.22 : 136,787.94 = 56,099.71 : x
  2. Step 2: Convert to fraction form
    99,120.22/136,787.94 = 56,099.71/x
  3. Step 3: Cross multiply
    99,120.22x = 136,787.94 × 56,099.71
  4. Step 4: Simplify right side
    99,120.22x = 7,673,763,765.50
  5. Step 5: Solve for x
    x = 7,673,763,765.50/99,120.22
  6. Step 6: Final answer
    x = 77,418.75

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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.