Home / 133,198.02-183,912.12-85,477.68

Finding the Fourth Proportional to 133,198.02, 183,912.12 and 85,477.68

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Solution

The fourth proportional to 133,198.02, 183,912.12 and 85,477.68 is: 118,022.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,198.02 : 183,912.12 = 85,477.68 : x
  2. Step 2: Convert to fraction form
    133,198.02/183,912.12 = 85,477.68/x
  3. Step 3: Cross multiply
    133,198.02x = 183,912.12 × 85,477.68
  4. Step 4: Simplify right side
    133,198.02x = 15,720,381,341.48
  5. Step 5: Solve for x
    x = 15,720,381,341.48/133,198.02
  6. Step 6: Final answer
    x = 118,022.64

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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.