Home / 140,810.50-194,318.49-77,149.77

Finding the Fourth Proportional to 140,810.50, 194,318.49 and 77,149.77

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Solution

The fourth proportional to 140,810.50, 194,318.49 and 77,149.77 is: 106,466.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,810.50 : 194,318.49 = 77,149.77 : x
  2. Step 2: Convert to fraction form
    140,810.50/194,318.49 = 77,149.77/x
  3. Step 3: Cross multiply
    140,810.50x = 194,318.49 × 77,149.77
  4. Step 4: Simplify right side
    140,810.50x = 14,991,626,810.25
  5. Step 5: Solve for x
    x = 14,991,626,810.25/140,810.50
  6. Step 6: Final answer
    x = 106,466.68

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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.