Home / 145,016.33-200,105.03-80,485.25

Finding the Fourth Proportional to 145,016.33, 200,105.03 and 80,485.25

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Solution

The fourth proportional to 145,016.33, 200,105.03 and 80,485.25 is: 111,059.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,016.33 : 200,105.03 = 80,485.25 : x
  2. Step 2: Convert to fraction form
    145,016.33/200,105.03 = 80,485.25/x
  3. Step 3: Cross multiply
    145,016.33x = 200,105.03 × 80,485.25
  4. Step 4: Simplify right side
    145,016.33x = 16,105,502,566.50
  5. Step 5: Solve for x
    x = 16,105,502,566.50/145,016.33
  6. Step 6: Final answer
    x = 111,059.93

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1.5x scale

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.