Home / 345,090.69-517,718.94-108,433.17

Finding the Fourth Proportional to 345,090.69, 517,718.94 and 108,433.17

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Solution

The fourth proportional to 345,090.69, 517,718.94 and 108,433.17 is: 162,675.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,090.69 : 517,718.94 = 108,433.17 : x
  2. Step 2: Convert to fraction form
    345,090.69/517,718.94 = 108,433.17/x
  3. Step 3: Cross multiply
    345,090.69x = 517,718.94 × 108,433.17
  4. Step 4: Simplify right side
    345,090.69x = 56,137,905,833.24
  5. Step 5: Solve for x
    x = 56,137,905,833.24/345,090.69
  6. Step 6: Final answer
    x = 162,675.81

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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.