Home / 165,011.77-227,298.30-138,144.47

Finding the Fourth Proportional to 165,011.77, 227,298.30 and 138,144.47

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Solution

The fourth proportional to 165,011.77, 227,298.30 and 138,144.47 is: 190,289.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,011.77 : 227,298.30 = 138,144.47 : x
  2. Step 2: Convert to fraction form
    165,011.77/227,298.30 = 138,144.47/x
  3. Step 3: Cross multiply
    165,011.77x = 227,298.30 × 138,144.47
  4. Step 4: Simplify right side
    165,011.77x = 31,400,003,185.40
  5. Step 5: Solve for x
    x = 31,400,003,185.40/165,011.77
  6. Step 6: Final answer
    x = 190,289.48

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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.