Home / 140,820.50-194,332.30-77,160.58

Finding the Fourth Proportional to 140,820.50, 194,332.30 and 77,160.58

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Solution

The fourth proportional to 140,820.50, 194,332.30 and 77,160.58 is: 106,481.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,820.50 : 194,332.30 = 77,160.58 : x
  2. Step 2: Convert to fraction form
    140,820.50/194,332.30 = 77,160.58/x
  3. Step 3: Cross multiply
    140,820.50x = 194,332.30 × 77,160.58
  4. Step 4: Simplify right side
    140,820.50x = 14,994,792,980.73
  5. Step 5: Solve for x
    x = 14,994,792,980.73/140,820.50
  6. Step 6: Final answer
    x = 106,481.61

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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.