Home / 74,199.46-102,410.71-68,221.66

Finding the Fourth Proportional to 74,199.46, 102,410.71 and 68,221.66

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Solution

The fourth proportional to 74,199.46, 102,410.71 and 68,221.66 is: 94,160.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,199.46 : 102,410.71 = 68,221.66 : x
  2. Step 2: Convert to fraction form
    74,199.46/102,410.71 = 68,221.66/x
  3. Step 3: Cross multiply
    74,199.46x = 102,410.71 × 68,221.66
  4. Step 4: Simplify right side
    74,199.46x = 6,986,628,637.98
  5. Step 5: Solve for x
    x = 6,986,628,637.98/74,199.46
  6. Step 6: Final answer
    x = 94,160.10

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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.