Home / 193,495.48-290,355.20-81,165.62

Finding the Fourth Proportional to 193,495.48, 290,355.20 and 81,165.62

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Solution

The fourth proportional to 193,495.48, 290,355.20 and 81,165.62 is: 121,795.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,495.48 : 290,355.20 = 81,165.62 : x
  2. Step 2: Convert to fraction form
    193,495.48/290,355.20 = 81,165.62/x
  3. Step 3: Cross multiply
    193,495.48x = 290,355.20 × 81,165.62
  4. Step 4: Simplify right side
    193,495.48x = 23,566,859,828.22
  5. Step 5: Solve for x
    x = 23,566,859,828.22/193,495.48
  6. Step 6: Final answer
    x = 121,795.40

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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.