Home / 343,837.92-515,732.53-91,112.81

Finding the Fourth Proportional to 343,837.92, 515,732.53 and 91,112.81

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Solution

The fourth proportional to 343,837.92, 515,732.53 and 91,112.81 is: 136,662.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,837.92 : 515,732.53 = 91,112.81 : x
  2. Step 2: Convert to fraction form
    343,837.92/515,732.53 = 91,112.81/x
  3. Step 3: Cross multiply
    343,837.92x = 515,732.53 × 91,112.81
  4. Step 4: Simplify right side
    343,837.92x = 46,989,841,135.47
  5. Step 5: Solve for x
    x = 46,989,841,135.47/343,837.92
  6. Step 6: Final answer
    x = 136,662.77

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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.