Home / 140,836.50-194,354.37-77,176.80

Finding the Fourth Proportional to 140,836.50, 194,354.37 and 77,176.80

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Solution

The fourth proportional to 140,836.50, 194,354.37 and 77,176.80 is: 106,503.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,836.50 : 194,354.37 = 77,176.80 : x
  2. Step 2: Convert to fraction form
    140,836.50/194,354.37 = 77,176.80/x
  3. Step 3: Cross multiply
    140,836.50x = 194,354.37 × 77,176.80
  4. Step 4: Simplify right side
    140,836.50x = 14,999,648,342.62
  5. Step 5: Solve for x
    x = 14,999,648,342.62/140,836.50
  6. Step 6: Final answer
    x = 106,503.98

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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.