Home / 257,829.24-386,762.50-107,918.76

Finding the Fourth Proportional to 257,829.24, 386,762.50 and 107,918.76

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Solution

The fourth proportional to 257,829.24, 386,762.50 and 107,918.76 is: 161,885.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,829.24 : 386,762.50 = 107,918.76 : x
  2. Step 2: Convert to fraction form
    257,829.24/386,762.50 = 107,918.76/x
  3. Step 3: Cross multiply
    257,829.24x = 386,762.50 × 107,918.76
  4. Step 4: Simplify right side
    257,829.24x = 41,738,929,414.50
  5. Step 5: Solve for x
    x = 41,738,929,414.50/257,829.24
  6. Step 6: Final answer
    x = 161,885.94

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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.