Home / 226,191.06-312,148.89-129,404.01

Finding the Fourth Proportional to 226,191.06, 312,148.89 and 129,404.01

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Solution

The fourth proportional to 226,191.06, 312,148.89 and 129,404.01 is: 178,580.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,191.06 : 312,148.89 = 129,404.01 : x
  2. Step 2: Convert to fraction form
    226,191.06/312,148.89 = 129,404.01/x
  3. Step 3: Cross multiply
    226,191.06x = 312,148.89 × 129,404.01
  4. Step 4: Simplify right side
    226,191.06x = 40,393,318,083.05
  5. Step 5: Solve for x
    x = 40,393,318,083.05/226,191.06
  6. Step 6: Final answer
    x = 178,580.52

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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.