Home / 193,483.90-290,337.96-81,154.12

Finding the Fourth Proportional to 193,483.90, 290,337.96 and 81,154.12

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Solution

The fourth proportional to 193,483.90, 290,337.96 and 81,154.12 is: 121,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,483.90 : 290,337.96 = 81,154.12 : x
  2. Step 2: Convert to fraction form
    193,483.90/290,337.96 = 81,154.12/x
  3. Step 3: Cross multiply
    193,483.90x = 290,337.96 × 81,154.12
  4. Step 4: Simplify right side
    193,483.90x = 23,562,121,646.40
  5. Step 5: Solve for x
    x = 23,562,121,646.40/193,483.90
  6. Step 6: Final answer
    x = 121,778.20

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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.