Home / 99,440.46-149,160.69-81,873.38

Finding the Fourth Proportional to 99,440.46, 149,160.69 and 81,873.38

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Solution

The fourth proportional to 99,440.46, 149,160.69 and 81,873.38 is: 122,810.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,440.46 : 149,160.69 = 81,873.38 : x
  2. Step 2: Convert to fraction form
    99,440.46/149,160.69 = 81,873.38/x
  3. Step 3: Cross multiply
    99,440.46x = 149,160.69 × 81,873.38
  4. Step 4: Simplify right side
    99,440.46x = 12,212,290,226.33
  5. Step 5: Solve for x
    x = 12,212,290,226.33/99,440.46
  6. Step 6: Final answer
    x = 122,810.07

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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.