Home / 193,526.20-290,231.70-75,129.40

Finding the Fourth Proportional to 193,526.20, 290,231.70 and 75,129.40

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Solution

The fourth proportional to 193,526.20, 290,231.70 and 75,129.40 is: 112,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,526.20 : 290,231.70 = 75,129.40 : x
  2. Step 2: Convert to fraction form
    193,526.20/290,231.70 = 75,129.40/x
  3. Step 3: Cross multiply
    193,526.20x = 290,231.70 × 75,129.40
  4. Step 4: Simplify right side
    193,526.20x = 21,804,933,481.98
  5. Step 5: Solve for x
    x = 21,804,933,481.98/193,526.20
  6. Step 6: Final answer
    x = 112,671.74

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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.