Home / 257,109.75-385,914.06-124,083.72

Finding the Fourth Proportional to 257,109.75, 385,914.06 and 124,083.72

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Solution

The fourth proportional to 257,109.75, 385,914.06 and 124,083.72 is: 186,245.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,109.75 : 385,914.06 = 124,083.72 : x
  2. Step 2: Convert to fraction form
    257,109.75/385,914.06 = 124,083.72/x
  3. Step 3: Cross multiply
    257,109.75x = 385,914.06 × 124,083.72
  4. Step 4: Simplify right side
    257,109.75x = 47,885,652,165.10
  5. Step 5: Solve for x
    x = 47,885,652,165.10/257,109.75
  6. Step 6: Final answer
    x = 186,245.96

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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.