Home / 76,669.16-105,238.17-68,098.28

Finding the Fourth Proportional to 76,669.16, 105,238.17 and 68,098.28

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Solution

The fourth proportional to 76,669.16, 105,238.17 and 68,098.28 is: 93,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,669.16 : 105,238.17 = 68,098.28 : x
  2. Step 2: Convert to fraction form
    76,669.16/105,238.17 = 68,098.28/x
  3. Step 3: Cross multiply
    76,669.16x = 105,238.17 × 68,098.28
  4. Step 4: Simplify right side
    76,669.16x = 7,166,538,367.35
  5. Step 5: Solve for x
    x = 7,166,538,367.35/76,669.16
  6. Step 6: Final answer
    x = 93,473.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.