Home / 257,913.07-386,851.03-68,369.12

Finding the Fourth Proportional to 257,913.07, 386,851.03 and 68,369.12

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Solution

The fourth proportional to 257,913.07, 386,851.03 and 68,369.12 is: 102,548.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,913.07 : 386,851.03 = 68,369.12 : x
  2. Step 2: Convert to fraction form
    257,913.07/386,851.03 = 68,369.12/x
  3. Step 3: Cross multiply
    257,913.07x = 386,851.03 × 68,369.12
  4. Step 4: Simplify right side
    257,913.07x = 26,448,664,150.35
  5. Step 5: Solve for x
    x = 26,448,664,150.35/257,913.07
  6. Step 6: Final answer
    x = 102,548.75

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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.