Home / 133,203.88-183,840.60-79,491.16

Finding the Fourth Proportional to 133,203.88, 183,840.60 and 79,491.16

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Solution

The fourth proportional to 133,203.88, 183,840.60 and 79,491.16 is: 109,709.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,203.88 : 183,840.60 = 79,491.16 : x
  2. Step 2: Convert to fraction form
    133,203.88/183,840.60 = 79,491.16/x
  3. Step 3: Cross multiply
    133,203.88x = 183,840.60 × 79,491.16
  4. Step 4: Simplify right side
    133,203.88x = 14,613,702,549.10
  5. Step 5: Solve for x
    x = 14,613,702,549.10/133,203.88
  6. Step 6: Final answer
    x = 109,709.29

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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.