Home / 226,707.89-312,859.53-129,909.83

Finding the Fourth Proportional to 226,707.89, 312,859.53 and 129,909.83

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Solution

The fourth proportional to 226,707.89, 312,859.53 and 129,909.83 is: 179,277.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,707.89 : 312,859.53 = 129,909.83 : x
  2. Step 2: Convert to fraction form
    226,707.89/312,859.53 = 129,909.83/x
  3. Step 3: Cross multiply
    226,707.89x = 312,859.53 × 129,909.83
  4. Step 4: Simplify right side
    226,707.89x = 40,643,526,791.88
  5. Step 5: Solve for x
    x = 40,643,526,791.88/226,707.89
  6. Step 6: Final answer
    x = 179,277.08

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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.