Home / 136,581.12-204,964.48-83,829.60

Finding the Fourth Proportional to 136,581.12, 204,964.48 and 83,829.60

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Solution

The fourth proportional to 136,581.12, 204,964.48 and 83,829.60 is: 125,801.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,581.12 : 204,964.48 = 83,829.60 : x
  2. Step 2: Convert to fraction form
    136,581.12/204,964.48 = 83,829.60/x
  3. Step 3: Cross multiply
    136,581.12x = 204,964.48 × 83,829.60
  4. Step 4: Simplify right side
    136,581.12x = 17,182,090,372.61
  5. Step 5: Solve for x
    x = 17,182,090,372.61/136,581.12
  6. Step 6: Final answer
    x = 125,801.36

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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.