Home / 193,628.96-290,461.36-75,309.28

Finding the Fourth Proportional to 193,628.96, 290,461.36 and 75,309.28

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Solution

The fourth proportional to 193,628.96, 290,461.36 and 75,309.28 is: 112,970.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,628.96 : 290,461.36 = 75,309.28 : x
  2. Step 2: Convert to fraction form
    193,628.96/290,461.36 = 75,309.28/x
  3. Step 3: Cross multiply
    193,628.96x = 290,461.36 × 75,309.28
  4. Step 4: Simplify right side
    193,628.96x = 21,874,435,889.42
  5. Step 5: Solve for x
    x = 21,874,435,889.42/193,628.96
  6. Step 6: Final answer
    x = 112,970.89

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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.