Home / 140,710.53-194,180.84-76,180.44

Finding the Fourth Proportional to 140,710.53, 194,180.84 and 76,180.44

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Solution

The fourth proportional to 140,710.53, 194,180.84 and 76,180.44 is: 105,129.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,710.53 : 194,180.84 = 76,180.44 : x
  2. Step 2: Convert to fraction form
    140,710.53/194,180.84 = 76,180.44/x
  3. Step 3: Cross multiply
    140,710.53x = 194,180.84 × 76,180.44
  4. Step 4: Simplify right side
    140,710.53x = 14,792,781,830.77
  5. Step 5: Solve for x
    x = 14,792,781,830.77/140,710.53
  6. Step 6: Final answer
    x = 105,129.17

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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.