Home / 99,442.04-149,163.06-81,874.95

Finding the Fourth Proportional to 99,442.04, 149,163.06 and 81,874.95

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Solution

The fourth proportional to 99,442.04, 149,163.06 and 81,874.95 is: 122,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,442.04 : 149,163.06 = 81,874.95 : x
  2. Step 2: Convert to fraction form
    99,442.04/149,163.06 = 81,874.95/x
  3. Step 3: Cross multiply
    99,442.04x = 149,163.06 × 81,874.95
  4. Step 4: Simplify right side
    99,442.04x = 12,212,718,079.35
  5. Step 5: Solve for x
    x = 12,212,718,079.35/99,442.04
  6. Step 6: Final answer
    x = 122,812.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.