Home / 145,388.77-200,635.44-80,858.62

Finding the Fourth Proportional to 145,388.77, 200,635.44 and 80,858.62

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Solution

The fourth proportional to 145,388.77, 200,635.44 and 80,858.62 is: 111,584.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,388.77 : 200,635.44 = 80,858.62 : x
  2. Step 2: Convert to fraction form
    145,388.77/200,635.44 = 80,858.62/x
  3. Step 3: Cross multiply
    145,388.77x = 200,635.44 × 80,858.62
  4. Step 4: Simplify right side
    145,388.77x = 16,223,104,801.49
  5. Step 5: Solve for x
    x = 16,223,104,801.49/145,388.77
  6. Step 6: Final answer
    x = 111,584.30

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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.