Home / 345,749.57-518,328.54-132,670.39

Finding the Fourth Proportional to 345,749.57, 518,328.54 and 132,670.39

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Solution

The fourth proportional to 345,749.57, 518,328.54 and 132,670.39 is: 198,892.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,749.57 : 518,328.54 = 132,670.39 : x
  2. Step 2: Convert to fraction form
    345,749.57/518,328.54 = 132,670.39/x
  3. Step 3: Cross multiply
    345,749.57x = 518,328.54 × 132,670.39
  4. Step 4: Simplify right side
    345,749.57x = 68,766,851,177.43
  5. Step 5: Solve for x
    x = 68,766,851,177.43/345,749.57
  6. Step 6: Final answer
    x = 198,892.08

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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.