Home / 165,620.76-248,069.07-128,082.12

Finding the Fourth Proportional to 165,620.76, 248,069.07 and 128,082.12

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Solution

The fourth proportional to 165,620.76, 248,069.07 and 128,082.12 is: 191,843.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,620.76 : 248,069.07 = 128,082.12 : x
  2. Step 2: Convert to fraction form
    165,620.76/248,069.07 = 128,082.12/x
  3. Step 3: Cross multiply
    165,620.76x = 248,069.07 × 128,082.12
  4. Step 4: Simplify right side
    165,620.76x = 31,773,212,392.03
  5. Step 5: Solve for x
    x = 31,773,212,392.03/165,620.76
  6. Step 6: Final answer
    x = 191,843.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.