Home / 257,237.20-385,855.95-107,395.81

Finding the Fourth Proportional to 257,237.20, 385,855.95 and 107,395.81

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Solution

The fourth proportional to 257,237.20, 385,855.95 and 107,395.81 is: 161,093.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,237.20 : 385,855.95 = 107,395.81 : x
  2. Step 2: Convert to fraction form
    257,237.20/385,855.95 = 107,395.81/x
  3. Step 3: Cross multiply
    257,237.20x = 385,855.95 × 107,395.81
  4. Step 4: Simplify right side
    257,237.20x = 41,439,311,731.66
  5. Step 5: Solve for x
    x = 41,439,311,731.66/257,237.20
  6. Step 6: Final answer
    x = 161,093.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.