Home / 203,146.52-280,388.86-135,166.36

Finding the Fourth Proportional to 203,146.52, 280,388.86 and 135,166.36

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Solution

The fourth proportional to 203,146.52, 280,388.86 and 135,166.36 is: 186,560.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,146.52 : 280,388.86 = 135,166.36 : x
  2. Step 2: Convert to fraction form
    203,146.52/280,388.86 = 135,166.36/x
  3. Step 3: Cross multiply
    203,146.52x = 280,388.86 × 135,166.36
  4. Step 4: Simplify right side
    203,146.52x = 37,899,141,077.59
  5. Step 5: Solve for x
    x = 37,899,141,077.59/203,146.52
  6. Step 6: Final answer
    x = 186,560.62

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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.