Home / 145,027.72-200,140.14-108,664.60

Finding the Fourth Proportional to 145,027.72, 200,140.14 and 108,664.60

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Solution

The fourth proportional to 145,027.72, 200,140.14 and 108,664.60 is: 149,958.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,027.72 : 200,140.14 = 108,664.60 : x
  2. Step 2: Convert to fraction form
    145,027.72/200,140.14 = 108,664.60/x
  3. Step 3: Cross multiply
    145,027.72x = 200,140.14 × 108,664.60
  4. Step 4: Simplify right side
    145,027.72x = 21,748,148,257.04
  5. Step 5: Solve for x
    x = 21,748,148,257.04/145,027.72
  6. Step 6: Final answer
    x = 149,958.56

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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.