Home / 73,985.88-102,182.94-68,387.16

Finding the Fourth Proportional to 73,985.88, 102,182.94 and 68,387.16

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Solution

The fourth proportional to 73,985.88, 102,182.94 and 68,387.16 is: 94,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,985.88 : 102,182.94 = 68,387.16 : x
  2. Step 2: Convert to fraction form
    73,985.88/102,182.94 = 68,387.16/x
  3. Step 3: Cross multiply
    73,985.88x = 102,182.94 × 68,387.16
  4. Step 4: Simplify right side
    73,985.88x = 6,988,001,067.05
  5. Step 5: Solve for x
    x = 6,988,001,067.05/73,985.88
  6. Step 6: Final answer
    x = 94,450.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.